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Need help, can't figure out what is wrong with my groupings...
Hi everyone,
I just wanted to thank you guys ahead of time for your input. I had what was originally a Model 11 .308. I have since upgraded a few items… I switched out the trigger to the SSS Comp Trigger, it’s currently sitting at about 1lb of trigger pull. Next, the stock was replaced to the Choate Tactical stock. It’s sitting on a Harris 6-9” bipod. The barrel is a Shilen Match Grade barrel. 1-10” twist, 24”, varmint. It is sitting on the original scope mount that came with the packaged gun, I have loctite’d those down with the blue Loctite so it isn’t permanent but remains snug. Burris XTR rings hold the SWFA SS 10x scope.
When I clean, I use a Hoppes aluminum three piece rod, copper brush, and a bore guide.
The ammo I’m using is Federal Match Sierra Match King BTHP 168gr.
I installed the barrel myself using a Forstner go-gauge.
The barrel is very free floated, I noticed the left edge of the tang wasn’t too free floating so I took a file and shaved down part of the Choate stock a little. It is now more free floating than before.
I’m frustrated because at best, I was getting 1” 5 shot groups at 100 yards. I could get slightly under 1” three shot groups. When I do 10 shot groups, I’m hitting about 1.5” to 2”. The last two times at the range, my 5 shot groups were approaching 2 inches… I’m very frustrated in that I can’t get the groups smaller. I was hoping you guys could give me advice on what could be wrong.
Could it be the Shilen barrel? Could it be shooting technique? Did I shave off too much from the stock’s tang area, or not enough? Could it be that I’m using factory ammo, despite it being match grade ammo? All of the screws mounting the rifle to the stock seem very tight. I’m shooting using the bipod on a bench, supported by a sandbag at the rear. Sometimes I will need to pinch the sandbag to adjust elevation, but otherwise it seems fairly supported. I really appreciate your help… I have no tools to gauge if the barrel is bad or not. Also, I’ve only put there about 200-250 rounds in it. I try to clean it every fifty rounds or so with both Hoppes solvent and Slip “something” copper solvent.
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Re: Need help, can't figure out what is wrong with my groupings...
I would start off by replacing the scope base with a quality one piece base.
I doubt that is the problem, but you could not give me a 2 piece scope base
after I saw what they did on a Browning 243 BLR. Darn thing shot all over the place.
After I put a dednutz mount on it, it now shoots tight.
1" to 2" sounds like it could be the bipod. Are you preloading it ??
I would take the bipod off for now and shoot off a front and rear rest.
If it still shoots open, I would try some black hills match ammo next
and maybe verify the scope.
How about paralax ??
Sure yuou got that set correctly.
Seems like I remember My ss scope was off in parallax
If it still shoots open I would at least bed the recoil lug to make sure the recoil is not being transferred to the action screws.
You may want to do that first or just bed the entire stock.
Last ditch effort, I would shoot a box of 50 tubbs FF bullets through it.
After all that it should shoot 1/4" 3 shot groups if everything else is good.
I think 10 rapid shots will probably open up some due to barrel heat.
Somewhere in there you might want to try some Berger or lapua Scenecar known accuracy loads.
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Re: Need help, can't figure out what is wrong with my groupings...
Thanks, I will try to order a bench rest and a one-piece scope base in the next few nights. Since I have a short action receiver, is the distance between the two base mounting holes the same across all Savage short action receivers? Mine is with the DBM, so I know the two screw holes on the bottom to mount it to the stock is slightly different than a short action without the DBM, but what about the scope bases?
Regarding the bipod, I do not preload it. I did try to preload it a few times yesterday but the harris pod slipped a little on the wooden bench at times, and at other times, i couldn't figure out the right amount of pressure to apply forward. I will try to order a bench rest and take the bipod off and see if that helps narrow down the problem.
I have tried a few black hills match ammo with similar results, although i do notice it to have slightly (maybe 1/4") smaller groups.
I think the parallax setting is correct. I've set it to the 100 yard setting on the scope, which is the range i'm currently shooting it at.
The Choate tactical stock has the V-blocks that I attach the rifle to the stock with. I was under the impression I don't bed these?
If I bed the recoil lug, so i just put some bedding compound where the stock meets the recoil lug and screw screw the whole thing down? i understand i would need to apply a releasing agent to the recoil lug as well. that's it?
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Re: Need help, can't figure out what is wrong with my groupings...
Should be he same if it was built in the last several years.
I think the last change was from a flatback to the current round back and that was a while ago.
Not sure 100% on the date though.
EGW makes a decent base that is not too expensive.
The bipod is probably a large part of the problem.
I read that a lot. Bad groups what going on and as soon as they go to a rest or bags the groups cut in half.
Out of curiosity are they all over the place, left right or stringing ??
For parallax - set it and move your head back and forth and if the image moves then its not set right.
I think mine was on at around the 75 yard mark or so. That was a SS 20X.
I would not bed it yet. I would hate to dremel into that aluminum bed.
I had a choate ultimate varmint stock on a factory action with a midway Shilen 6mm bR barrel and it would shoot 3/4" groups at 300 yards. It would put one through the same hole every now and then.
That said I had a machined recoil lug, SSS trigger, farrel base, burris extreme rings and a nightforce 12-42X scope.
No other work though. Didnt even torque the action bolts.
I dont think I would bed the choate stock yet especially with an aluminum V bedding block.
Just put a machined recoil lug on it and make sure the bolts are centered in the holes.
If one is binding front or back it could cause problems.
You can do that with a long 1/4x28 bolt and see how it centers.
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Re: Need help, can't figure out what is wrong with my groupings...
Buy a Swivel Stud and replace one the the Screws that hold the Bipod Rail to the stock with the Stud and a few Washers, Attach the Bipod to it. The factory Slider is NOT worth a crap for Precision shooting.
Are you torquing the action bolts to 65 INCH lbs ? if not, you need to
Replace the POS Scope Bases... NOW
Have you Re Checked the headspace ?
Clamp a board, or Temp Screw a 1X2 to the bench to load the bipod against, or, better yet, get Off the bench and shoot prone....
If that does not help, Try the FGMM 175 Grain.
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Re: Need help, can't figure out what is wrong with my groupings...
Welcome to the site.
From reading your post I can pick a few things out of it that I would change. To start, throw the Hoppes solvent and 3 piece aluminum cleaning rod, where they belong, in the trash. The slip 2000 I have never messed with, but I would look for a quality cleaner like Shooters Choice, Butches bore shine, sweets, or Bore Tec Eliminator. Something that will get the copper, and carbon out. GET A ONE PIECE QUALITY ROD! (Like Dewey, or pro shot.)
There is nothing wrong with the factory scope mounts, I use them all the time, and have won many match's with them, they are not pretty but they work. Don't worry about stock screw bolt torque ratings, or free floating the tang. The barrel should be free floated. I would recamend getting a rest I have never shot a good group off of a bi-pod. Make sure the paralax is set correctly, just because the scope say 100 yards doesn't mean it is set paralax free. Don't pay attention to the numbers, Turn the paralax adjustment until it looks clear, then start moving your head around and get it to where the crosshairs don't move. If you have another scope to try, do so. 9 times out of 10 most accuracy problems come from bad scopes. Just because it is new, or such a name brand doesn't mean it is good.
From what I am reading I don't believe that any of the equipment is the problem. Have you had someone else with experience shoot the gun? I would say your biggest problem is the ammo, I would say the barrel just doesn't like it; Try different ammo. I would say that from reading your post that you are a newer shooter. The main thing is to stop changing things on the gun. You have top notch equipment! I think more than anything you need to get some trigger time. I would also state that a 308 is no round for a beginner, it will develop bad habits, I would also contribute this to the problem. I would say that it is possible that you have developed a flinch from anticipating the recoil, this will make the gun shoot all kinds of wild, I have seen it many times.
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Re: Need help, can't figure out what is wrong with my groupings...
Thanks for the help, guys.
Tammons, it seems like the first shot will hit bullseye, and then the next few shots will go slightly low, and then slightly left. That's not all the time, but I did notice that yesterday more often than not.
Ace, I have not rechecked the headspace, but that's a good idea. Hopefully nothing came loose somehow...
82boy, that's good to hear that your factory mounts are working great. I suppose I can hold off on the single piece base for now to save some money and see if the rest helps first. It looks like you all agree that a bipod is not the route for precision shooting and that a rest is the wayto go...
I will also go order a good cleaning rod and solvent/copper cleaner.
Yes, I am a newer shooter. I have shot handguns for about 10 years, but I am pretty new to rifle shooting. To be honest, this is much more interesting and much more challenging. I do find that I sometimes anticipate the recoil... would the described pattern above go along with that? Unfortunately my friend I go shooting with is as new to rifles as I am, and he has an LR-308 that shoots even slightly larger groupings that mine. We use the same Federal Match SMK ammo...
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Re: Need help, can't figure out what is wrong with my groupings...
Ok, just ordered some Butch's cleaning solvent, a Dewey coated one piece rod, and an Uncle Mike's swivel. I'll give the barrel a good cleaning with the solution, take the bipod off, and put her on the sandbags at the range and see if I can get those groups a little smaller. If I'm lucky, my friend can hopefully bring his rest. I will try to stop anticipating recoil as well... if possible. I'm sure as 82boy has mentioned, my technique (or rather the lack of) has a lot to do with it as well...
If that still fails with the rest, perhaps I will get the EGW base just to help eliminate anything else, and pick up nicer ammo than the Federal Match factory ammo. I probably will not have time to make it until Thanksgiving weekend...
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Re: Need help, can't figure out what is wrong with my groupings...
are you using the factory recoil lug you might want to replace it with an aftermarket lug.
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Re: Need help, can't figure out what is wrong with my groupings...
u need to get something like sweets 7.62 to get the copper out
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Re: Need help, can't figure out what is wrong with my groupings...
To solve anticipating recoil problems. When shooting place all your focus on the crosshairs of the scope, before you fire live rounds place the crosshair on the target and dry fire (Without ammo) the gun. The crosshairs should not move, as the trigger is pulled. After you accomplish this the next step would involve your friend. Have you friend load the gun. Have your friend at random place either a live of fired round into the chamber, (The point behind this is to suprise you, you don't want to know what is comming) fire a string of rounds, when doing this place 100% of your concentration on the crosshairs, the gun should be like a rock. When you get the a dud round see if the crosshairs move, if they do, you have a problem, your flinching.
When the gun is set up, it should be on target without touching it. Watch your breathing and how you touch the rifle. In all honesty, I would put the 308 away and get a 22LR. Shoot groups at 25, 50, and then 100 yards. Get to the point where you can shoot one hole groups, and then move out, don't expect to shoot one hole groups at 100 yards.
One last word of advise, use wind flags. If you are shooting without windflags you are wasting your time. Wind flags don't have to be elaborate or expensive. A few pieces of surveyors ribbon on a stick will do wonders. You can get surveyors tape at Menard's, Lowes, Walmart and other stores it is cheap. Cut a section off about 1 foot long and tie it to a piece of dowel rod, do this three times, place your flags out at 15, 30, and 75 yards. place them just to the the left of your rifle bore line to the target, so that you can see them when you are behind your rifle. If you want a better working flag take the dowel rod drill a hole in the center of it about 1 inch deep, take a piece of wire (Like a coat hanger) cut it off about 3 inches long bend it in the middle at 90 degrees, place it in the hole in the dowel rod and then tie your tape to the other side of the wire. The main this is look at the flags, which the direction of the tails, and the intensity of the wind, when you find a condition that repeats and hold for a long time shoot in that condition, but the second things change stop shooting.
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Re: Need help, can't figure out what is wrong with my groupings...
hipakane, yeah, i switched out to a Northland Supply machined recoil lug at the same time i switched the barrel. Josebd, think the Butch's should do the job as well? I think it was a two-in-one solution, like 82boy said.
82boy, good idea on the random rounds to help analyze my shooting. Perhaps I will avoid the 100 yard line for now as well. Regarding windage flags, i will ask the range if they are ok with that. I don't see why they wouldn't be ok with it if I pick up the windage sticks. Would a distance of even 100 yards be effected by wind though? Sorry for asking, I'm a complete novice at this.
Secondly, would a benchrest like this caldwell work?
http://www.midwayusa.com/viewproduct...tnumber=838651
It seems light weight and cheap, I didn't want to break the bank on a rest... If this will help hold the gun steady while I shoot, think it should be good enough to help analyze the problem vs using sandbags supplied by the range and trying to get a good repeatable position? Is this rest not good enough and I should spring for the Caldwell Rock front rest?
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Re: Need help, can't figure out what is wrong with my groupings...
If you are flinching then I would say that and the bipod are 90% of your problem.
Go to the range with a friend and let him load your gun and slip in a dummy round every now and then.
Let him watch you shoot.
If you are flinching you will notice it and he will see it in the dummy round.
Its a lot more common than you think and with a loaded round you will not know if you are flinching or not.
One thing that will help is a past pad.
The other is concentration on squeezing the trigger which is a lot harder than it sounds.
I think most people tighten up when they flinch, IE grip the rifle harder or pull it in.
On lighter calibers I like to shoot free recoil off a rest with a super light trigger and that helps me a lot.
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Re: Need help, can't figure out what is wrong with my groupings...
There are a plethora of rest types.
http://www.exploreproducts.com/gunre...otingrests.htm
I like a front rest with an elevation adjustment and a rear bag.
I mostly use a rock jr just beacuse I wanted something light and small but I dont use it for
serious bench shooting.
If you are going to get seriious about bench shooting I would get a larger more expensive front rest with adjustable feet.
I have the leather rear bag.
Nice part about an adjustable front rest is you can settle the rear of the stock in the back bag and crank up the front elevation with the front rest to get on target.
Still I see people at the range shooting all sorts of setups.
Some people just drop their carry bag on top of the bench and use that.
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Re: Need help, can't figure out what is wrong with my groupings...
Quote:
Originally Posted by axio
Would a distance of even 100 yards be effected by wind though? Sorry for asking, I'm a complete novice at this.
O' you better believe it! Wind affects everything from a football running back, to airplains, to yes even bullets. There is two schools of thought on wind; Many older shooters believe the wind closest to the muzzle affects the bullet the most in its flight, some of the newer top shooters (Such as Mike Ratagin) credit the last section (near the target) to have the most affect by wind. The fact is, THE WIND DOES GREATLY AFFECT BULLET IMPACT! Intensity and angle of the wind will change bullet impact from horizontal to vertical, and everything else in between. In my opinion a faster and flatter shooting round (Like a 22/250) will be less affected by the wind, but it is still greatly impacted by the wind. The longer range you shoot, the more the wind affects the bullet, at 1000 yards it is not uncommon for the bullet to impact other peoples targets, with wind pushing the bullets several feet. At close rage the wind still affects bullets, even pistol shooters realize the affects of wind.
Quote:
Originally Posted by axio
Secondly, would a benchrest like this caldwell work?
Is this rest not good enough and I should spring for the Caldwell Rock front rest?
IMO Stay away from caldwell, I have never seen one rest they make that has impressed me. Out of all there rest i would say the best is a rock, but if your going to buy a rest, buy the best you can afford. Buy it once and forget it. If your looking for a good low priced alternative, check out Graff and Sons rest imported from England, smartreloader. It is nice stuff from what I have seen.
http://www.grafs.com/retail/
This is the rest I was talking about.
http://www.grafs.com/retail/catalog/...t/productId/68
A better choice.
http://www.grafs.com/retail/catalog/...t/productId/66
If you want a GREAT rest, that will last you your entire life, then buy a Sinclair.
http://www.sinclairintl.com/
This is a great rest! This is what 90% of competition benchrest shooters use.
http://www.sinclairintl.com/.aspx/pi...e_Windage_Rest
The light weight rest are not bad.
http://www.sinclairintl.com/.aspx/pi...ghtweight_Rest
Either rest would need a bag, and the best around is Protektor.
http://protektormodel.com/
This should fit the bill.
http://protektormodel.com/02.htm
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Re: Need help, can't figure out what is wrong with my groupings...
A few other thing to pay attention to that will affect your groups is one Light level, and mirage. Watch for the sun going in and out of clouds, time of day, and other light changes. Mirage you may not notice it much on 10 power but pay attention to what it is ding. Never shoot in a boil.
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Re: Need help, can't figure out what is wrong with my groupings...
Thanks for the help, guys. I'll be looking online to find a rest and rear bag tonight. I'll definitely go ahead with the windage sticks. Just spoke with my friend and he remembered seeing people put them up out there so I guess the range should be ok with it.
I'll report back in a week and a half. I hope the rest arrives by then so I can take it out on the Sunday. HOPEFULLY I will be able to come back with pictures of tighter groups...
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Re: Need help, can't figure out what is wrong with my groupings...
Are you letting the barrel cool down between shots? What your describing sounds like hot barrel issues to me.
My 1/2 minute reloads will group inside a 1/2" all day long so long as I let the barrel cool between shots. If I rapid fire 5 and 10 shot strings my groups open to 1" at 100 yards with a hot barrel. Your starting out with a 1" group and opening to 2" which sounds normal for a hot barrel.
The bipod is also a poor rest for paper accuracy. You are much better off with a solid rest.
Scope and bases are also a possibility but behind the others listed.
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Re: Need help, can't figure out what is wrong with my groupings...
Hmm... i think i will basically shoot 7-10 rounds during the 15 minute firing period. Does that sound too fast? I do try to feel the barrel with my hand, and it feels warms, but never hot.
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Re: Need help, can't figure out what is wrong with my groupings...
Yes. one round a minute is considered rapid fire for what were talking about.
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Re: Need help, can't figure out what is wrong with my groupings...
wow.... complete n00b mistake.... how much time would you guys put in between shots? 3-4 minutes good enough?
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Re: Need help, can't figure out what is wrong with my groupings...
5 minutes minimum IMO but I've waited as much as 10 or more. Let the barrel tell you, touch it cold, then touch it after one shot, then touch it after a 3 shot string. If your trying to get the smallest group possible your going to let the barrel cool down cold between shots.
Don't let the sun shine on the barrel either. I shoot in Florida and the sun will heat up the barrel from the outside and make cooling it off a real chore.
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Re: Need help, can't figure out what is wrong with my groupings...
lol wow... good to know.... i will definitely try waiting it out.
ok, ordered a rest... Caldwell Rock... hopefully good enough to just test things out. i don't have plans to get into benchrest competitions as the only range out here in the SF Bay Area I know of only gets out to 200 yards... I also ordered a Karsten cheek rest as I've noticed it's hard for me to get a consistent cheek weld.
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Re: Need help, can't figure out what is wrong with my groupings...
I noticed something this morning as well. I was looking at the rifle from above. The barrel seems not straight vs the stock. The barrel is closer to one edge vs the other. Basically at the muzzle end of the barrel, the barrel is closer to one side than the other, but otherwise everything is still free-floating.
I'm sure everything is ok with the barrel and action, perhaps the two v-blocks in the Choate tactical stock are not perfectly straight relative to the foreend. This shouldn't be causing any problems, will it? I hope not as I threw the box away a while back.
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Re: Need help, can't figure out what is wrong with my groupings...
The stock is just holding the action and it is not uncommon to have a slightly offset in-letting.
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Re: Need help, can't figure out what is wrong with my groupings...
I have a choate tactical on my Rem.260. I bolted it up and made some loads and hit the range. My best load was right at 1 3/4" at 230 yards. I thought ok but was still wandering if it was the load or something else. I disassembled the complete rifle. I noticed that (my action is kryloned) i had inconsistant markings from the v-block on the bottom of my action. I ordered up some devcon and bedded it. I took it out the other day and shot the same load that shot the best group at 230 yards. I only was able to get to 180 yards but all seven shots touched and it went 3/4". I had a nice triangle and the rest went into the center of the group. Bedding it made a HUGE differance. The group at 230 yards had really no defined pattern to the group unlike the new group with it being bedded.
Forgot to add on testing loads: I (personally) don't believe in waiting inbetween shots for a specified amount of time. I want to see what the load will do. I have always found a solution to get the result i want. I am talking about if it is a hunting rifle i like to see what the load does fired quickly in 3-4 shots for a follow up shot if i needed it. If i fire 1 round and miss i am not going to wait 10 minutes to fire another one. The animal will be gone.
If it is for my F-class gun i have 20 shots in 20 minutes usually. Thats 1 a minute. I personally am a fast shooter and get the string done in under 10 minutes. My load work up is finding the group that shoots best with 5 shots in succession. Then i will load that group up and fire at least 15 to see how it does. IThis method hasn't failed me yet
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Re: Need help, can't figure out what is wrong with my groupings...
Matt,
Do you mean you skim bedded the action to the v block? that was it, right? Please correct me if i'm wrong here...never done any rifle bedding work before.
take the action out
drill a few small holes into the v-block
put on neutral color Kiwi shoe polish on the bottom of the receiver, the back of the recoil lug, in the action screw holes, and on the action screws themselves
put on a THIN layer of Devcon (any recommendation on what kind? Can I buy it from the local Home Depot or OSH hardware stores?) in the center of the aluminum blocks ONLY
Put the action on top, insert the action screws, tighten it up so that the action stays put, but not super tight?
After a day or so, take it out and let it cure for another day or so
Put it all back together?
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Re: Need help, can't figure out what is wrong with my groupings...
I don't know if i can post links to differant websites or not but the best tutorial for bedding i found was at snipershide by wnroscoe in the gunsmithing forum sticky'd at the top. There is 4 or 5 pages and it is worth reading them all.
The only thing i did differant was that i taped down the back of the action only to help from my 32" barrel hanging off the action even though i taped the barrel at the end of the stock so it leveled the whole action out.
I took a dremel and cleaned up all the excess plastic that was on the v-block and roughed up all the areas i wanted the bedding to stick to with the dremel. Wnroscoe's detailed procedure will explain it far better than i can.
I used Devcon 10110 and bought it from midway. Some think it is expensive ($35) but it is by far the most reccomended and shrinks the least.
[img width=600 height=336]http://i919.photobucket.com/albums/ad32/260shooter/bedding036.jpg[/img]
I wanted to bed the first couple inches forward of the lug but i didn't put enough devcon in. I might redo it but it is shooting good right now.
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Re: Need help, can't figure out what is wrong with my groupings...
Thanks, Matt. That seems like a lot of work! If shooting off a rest with some time between shots doens't yield good enough results, I can try to bed it next per the instructions you've directed me towards. I assume for skim bedding of the V-blocks, i would just put the Devcon right on the blocks themselves and not everywhere else? I ask cuz I looked through a few pages and couldn't find any pictures on there showing just skim bedding V-blocks.
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Re: Need help, can't figure out what is wrong with my groupings...
I wish i wouldn't have deleted some of my pics thru the process. All i did was mix up the devcon and use a popsicle stick to put it on. I gooped up the lug area good and lathered some on the v- block and gooped it up pretty good down in the v-block. I layed the action in and pressed down on the action pretty good. While maintaing some pressure i wrapped some painters tape around the action and stock to hold it down. I also used some 3" 1/4X28 bolts with the heads cut off to help center the action. I also wrapped painters tape around the studs so they were pretty snug in the screw holes. I also bedded the tang area. You can choose if you want to or not but if you decide not to the choate is already pretty well free floated in the tang area
After i got done bedding it i noticed the area behind the lug got coated with devcon so my lug was not making good contact with the v-block. So that did not help accuracy. I was fully not expecting the stock in factory setting to be anything to write home about but once bedded it is a good stock. Well worth the money i got it for. I bought it for $180 before it went up to $220.
I just bought anther one for my 7wsm that i got back from the smith. It doesn't have the barrel nut. It is sporting a 32" bartlein and the choate will be getting bedded also before i even work loads up for it.
It really wasn't all that hard to do but it was really nerve racking beings it was the first time bedding an action
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Re: Need help, can't figure out what is wrong with my groupings...
Quote:
Originally Posted by Captain Finlander
Yes. one round a minute is considered rapid fire for what were talking about.
I would have to totally disagree.
In Benchrest competition we shoot 5 shots on a record target and more on slighter targets, all in a 7 minute period. This is not rapid fire, and we stride for the highest end of accuracy. It is not uncommon for a shooter to shoot 10 to 15 rounds in that period depending on conditions. With that said the barrels never got hot enough for us to notice any accuracy difference. What I would call rapid fire is what in benchrest is called "Run and gun." If a favorable condition comes around, it is not uncommon for a shooter to fire 5 rounds in 3 to 5 seconds. (Or faster if they can.) This is common with long rang shooting, it also doesn't make enough heat to affect accuracy.
Yes, ultimately heat will affect accuracy usually makes the rounds go higher, but it takes a lot more than 10 shots in a 5 minute period to do that. Yes, the sun will make a barrel heat up, and time of year and angle of the sun will also make the barrel heat up more or less. Varmint hunters will fire hundreds of round an hour in the hot sun, and they torture barrels, many of them will place wet cold rags over the barrels, or even run water through the barrels to cool them off, but this is the extream side of things. These hunters are shooting small prairie dogs that require good accuracy, and they get it with hot barrels. I would agree it is a good idea to pay attention to the heat of the barrel, but don't focus on it. If you shoot 10 or 20 rounds in 10 minutes let it cool down for a a bit, but don't worry about it.
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Re: Need help, can't figure out what is wrong with my groupings...
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Re: Need help, can't figure out what is wrong with my groupings...
I agree too but he still needs to eliminate it as a variable.
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Re: Need help, can't figure out what is wrong with my groupings...
AN UPDATE!!!
Thanks for the help everyone! Matt, I went ahead and bedded the rifle. Not everything went smoothly, but the errors were dumb mistakes on my part. Luckily nothing that ended up affecting accuracy.
I did a few hour cleaning session yesterday... probably 4-5 hours long... at the end, I was still seeing blue from the copper fouling, but after having run wet patches, dry patches, scrubbing the bore with what was probably 75-100 times throughout the night, soaking the bore with Butch's (by running a few wet patches through and not running any dry patches through) for about two hours, etc. End of the night, I gave up after scrubbing and still seeing blue when I ran patches through. I'm not sure how good is good enough.... but there was still quite a bit of blue in there. It only really happened after brushing with the bronze brush though. Running wet patches alone did not produce blue, nor did scrubbing with a nylon brush when accompanies with Sweet's. Only when using both Butch's AND a bronze brush did I get blue on the patches afterwards. I basically gave up after a few hours.
Anyways, today was a cold 57 degrees out. I made a windstick as 82boy suggested. I basically only shot when the tape was at a standstill. The Choate stock's bipod thing was removed per Ace's suggestion and I replaced it with a fixed sling swivel with some washers as spacers. Regardless, I didn't end up using a bipod, used the Caldwell Rock with a rear Caldwell "rabbit ear" bag. Took a few shots to sight the rifle in. I then proceed to shoot the rest of the box of 20. That's all I could muster out with the weather (I was underdressed).. First group of 3, probably 1.5". The next groups were 3/4" and 1/2" groupings... i had 2 three shot groups that were 1/2" from my factory Federal GMM SMK ammo.... I was very happy! This is the best I've ever done! Thanks again for all of your suggestions. I tried to do a firm hold on the rifle, took my time between the shots, paid attention to maintaining a sight picture, and just tried to keep it consistent between what I was doing for each shot.
Thanks again guys, you guys rock! Now I want to learn how to load ammo... lol
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Re: Need help, can't figure out what is wrong with my groupings...
With a Shilen barrel you should be able to get 1/4" groups.
You will have to load your own to get it.
If you are plinking at 100 yards try some 110 gr Vmax bullets some time.
Besides those I shoot the 208 gr amax and the 220 gr prohunters in 308 over RL17.
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Re: Need help, can't figure out what is wrong with my groupings...
Quote:
Originally Posted by axio
The Choate stock's bipod thing was removed per Ace's suggestion and I replaced it with a fixed sling swivel with some washers as spacers. Regardless, I didn't end up using a bipod, used the Caldwell Rock with a rear Caldwell "rabbit ear" bag.
I Have a rifle with the US stock& I too noticed that the consistency with a bipod on the slider is not satisfactory. I notice a big improvement when I took it off& found a solid front rest.
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Re: Need help, can't figure out what is wrong with my groupings...
Honestly I wouldn't shoot factory if you gave them to me. I'd pull the bullets and reload. Every gun will like something different. On the slim chance you get one that would shoot anything (they do exist, but not commonly) hold on to it and shoot it sparingly. With a taylored handload you should be able to group under 1" all day long. The factory of today, especially the match grade is better than it ever was but still generic to work in a number of different guns. Your barrel will vibrate and flex differently than the next and how it vibrates and where in its vibration it is when the bullet leaves the bore is what is going to make or break your groups.
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Re: Need help, can't figure out what is wrong with my groupings...
I did a few hour cleaning session yesterday... probably 4-5 hours long...
Good God! I don't really think all of that is necessary. I get pissed if it takes me more than 20min to clean mine.