Groups like this all the time...

[1983Weatherby]

Hello everyone, I seem to shoot 2 consistent groups. IE: two shots will cut and then the next two will cut, but be an inch lower in the exact same pattern. I can't tell if its me flinching consistently or of it is the optics or mounts?

I have the rifle bedded in a bell and Carlson medalist stock with aluminum bedding block. It's a 300wby cartridge.

Optics are burris 6-24x44 signature scope. It has their forever warrantee.

I am not sure on the base and rings as I bought the rifle used.

It still shoots sub MOA, but if that issue was able to get squared away I should be able to shoot a 4 shot group at .30" instead of 1.0" at 100 yards. I have tried different hand loads and it doesn't seem to matter. I can never get all 4 to cut. They are always the same pattern, just the second 2 are ALWAYS 1" low.

Once I get enough posts to attach a picture I will.

[seanhagerty]

A couple thoughts;

Try having someone else shoot your rifle to see if the issue goes away.

Also, I didnt see where you discussed your ammo. Is it commercial, or reloads? If commercial, try another brand. If reloads, try adjusting your load. I like the OCW load development method, but a lot of folks like the ladder method. Either way, give it a try.



Good luck.

Sean

[stangfish]

You didn't mention anything about your rifle either. Sporter barrels firing shots one right after another would not suprise me if it does what you describe.

[1983Weatherby]

Two minutes between shots to let the barrel cool.

The rifle is actually a weatherby Mark V with 28" barrel and muzzle break.

I posted here as it gets more traffic and I own savage as well. :)

My hand loads are not the issue. I have had my father shoot my rifle and he can shoot consistent 4 shot groups at 100 under .50 with his Remington 700 SPS and nightforce optics.

He shoots exactly where I shoot with my rifle. So I would say its not shooter error at this point.

[1983Weatherby]

Someone suggested that I remove all the stock screws, magazine and base plate and see if there is any wiggle room length wise in the action area as my rifle may need to be bedded in my bell and Carlson stock if it wiggles. I will give that a try to tonight.

[stangfish]

So your loads shoot great in you fathers gun that is a Remington so you are sure that the loads are not the problem? Your gun is a weatherby. Which gun shot the .5 group?

This comment makes my head spin

My hand loads are not the issue. I have had my father shoot my rifle and he can shoot consistent 4 shot groups at 100 under .50 with his Remington 700 SPS and nightforce optics.

[1983Weatherby]

My fathers gun shoots .5. His is a .300 WSM. I guess what I'm trying to say is I can shoot his gun accurately and he shoots his gun accurately at .5 at 100. When either of us shoot mine it's always 1" with stacked 2 shot groups. Pictures would be worth 1000 words.

[stangfish]

OK now I gotcha. What is your load?

[1983Weatherby]

180gn TTSX
81.5 gns H-4831sc
Weatherby Brass
Fed GM215M primer
COAL 3.725

220gn Hornady
66gns IMR4831
Weatherby Brass
Fed GM215M primer
COAL 3.589"


Both loads shoot exactly the same way.

http://imageshack.us/a/img4/4431/idl0.jpg

[stangfish]

I'm still looking for the caliber of your weatherby. I have searched and searched.

http://imageshack.us/a/img4/4431/idl0.jpg

[1983Weatherby]

300 weatherby cartridge.

Let me know if you can view the pic.

[thomae]

Once I get enough posts to attach a picture I will.No such limitation exists. Try reading this: http://www.savageshooters.com/forumdisplay.php?52-Help-and-FAQ-s
Lots of good information, including how to post photos.

[stangfish]

When you are posting and the cursor is in the position you want it do this

http://i1202.photobucket.com/albums/bb363/stangfish/Stuff/pic_zpsae5acdf3.png

Then This
http://i1202.photobucket.com/albums/bb363/stangfish/Stuff/pic2_zps910273b1.png

[1983Weatherby]

Oh, I'm on my iPhone using tappatalk. It may just be a mobile limitation on this forum. Once I get home I will post the pic.

I'm sending my burris scope off since its covered under warrantee. I will switch to a near picitanny base with burris XTR rings in the process.

That way I can eliminate one more thing...

[Westcliffe01]

Stock bedding + potential scope wear and tear... Bedding is very important on a high recoil rifle. As is the grip of the rifle itself.

[seanhagerty]

Dont forget action screw torque too.

[Westcliffe01]

Torque can be checked with a torque wrench (if the person owns one). But bedding or rifle grip ? No tool to measure that....

[1983Weatherby]

http://imageshack.us/a/img560/1945/i2oj.jpg

Here is the picture of the rifle in question... It's a great looking rifle, just wish it was more accurate.

[1983Weatherby]

Ok, so after removing the scope from the rifle I found a plastic shim in the front scope ring... Not only was it a poor shim... Made out of a hard plastic but the tube was also scuffed up pretty bad from over tightening on the rear ring. So I think I have tracked down the problem.

Looks like a backyard gunsmith attempt to level the scope?

New rings and base will be on the way! Also sent the scope out to Burris. So I should be all squared away once everything gets back.

Thanks for all the help. When you buy a used rifle and it isn't shooting as intended I know now to remove the scope to check for idiotic mistakes.

[yobuck]

Ok, so after removing the scope from the rifle I found a plastic shim in the front scope ring... Not only was it a poor shim... Made out of a hard plastic but the tube was also scuffed up pretty bad from over tightening on the rear ring. So I think I have tracked down the problem.

Looks like a backyard gunsmith attempt to level the scope?

New rings and base will be on the way! Also sent the scope out to Burris. So I should be all squared away once everything gets back.

Thanks for all the help. When you buy a used rifle and it isn't shooting as intended I know now to remove the scope to check for idiotic mistakes.

before tapered bases became available we used to shim them all the time. im talking bases now not rings.
shimming rings is pretty common also but it should be done properly.
we used to have a beagle that would only chase 2 rabbits and then quit.
next day he would chase 2 more. maybe that approach would work for your gun.
a good group is a good group. no need to tell anybody how long it took. lol