KeyOriginally Posted by Keyhole
Great group!
105gr Berger Hybrid? Berger website doesn't show a 108gr Hybrid.
Key
Great group!
105gr Berger Hybrid? Berger website doesn't show a 108gr Hybrid.
You are right, it's not a hybrid! I always thought it was. Just 108gr BT target.
Some guys really need to learn how to actually measure group size. For instance if you see 2 bullet holes barely touching,, that makes the group the size of the caliber being used. It's very easy for an experienced eye to rough out a group size if there is more than one hole and you know the caliber being used.
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There really is an excuse for everything!
The bullet does not leave a dark mark on the paper that is exactly .243. A bullet going through this paper makes a .220 dark ring. That .17 was measuring with calipers and subtracting the .220. My phone app measured closer to ~.18. I added some more pictures for your experienced eyes.
Last edited by Keyhole; 04-14-2016 at 09:12 PM.
Sorry Key,, that is for sure a great group, yes I would like to see more!
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There really is an excuse for everything!
Key, you don't use the.220 number you are shooting .243, at bench rest matches they use a scale with rings the size of the caliber you shoot.
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There really is an excuse for everything!
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There really is an excuse for everything!
I understand what you are saying, and theoretically the bullet would make a .243 hole or dark ring in the paper and then it would be appropriate to use .243. However if I did that on this group where the edge of the group measures ~.395 and subtracted .243 it would artificially shrink my group .023. Let's say I shot a perfect .000" group and measured it to be .220" across like in the photo with the one bullet hole. If I subtracted .243" Ot would say I shot a negative group. This is the reason I use the ring because it is a consistent size. You wouldn't not the difference if the group was .723 vs .700 but when it's small it makes a difference. The photos below are from the ballistics AI app and the target was scaled to make the measurements correct. In the first one you can see the hole size of .220 was used and it matches perfectly. The second one shows what would happen if I used .243". I didn't move the markers, but you can see if I did it would shrink the group.
.223 Axis heavy barrel with a Boyd stock and lightened trigger
Not an expensive rifle but I'm very happy with it
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Nice groups everyone, groups that small can be hard to measure. I can't say I have any that are as good.
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Hey Keyhole, is that an app that measures/estimates group size? If so, please share the name! Thanks.
Yes, the app is Ballistic AE and I think it is available for iPhone and android. It's expensive but it comes with a good ballistic calculator and will store target pictures and measure groups. It has some other neat features as well.
Great shooting keyhole and very nice rig! I guess my eyes are starting to play tricks on me. Lol
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I will have to look into the app, it is $20 on iTunes.
Check out this group, it was shot at
200 yards,
off hand with sling,
with a2 AR,
by a guy who has 1 hand and a prosthetic hand (left)
newbie from gr, mi.
That's pretty impressive Rex! It's amazing what ppl can over come if they have the will and put their minds to it.
wow!
Life is tuff.....its even tuffer when your stupid
{John Wayne}
5 shots @ 100yds. Savage Model 12fv chambered in .22-250. 55gr Sierra Blitzkings over 34gr of Varget.
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One thing's for sure, I've yet to shoot a group worth bragging about with this Stealth - mostly due to the FAB Defense buttstock they put on them from the factory. This has been the "norm" with this rifle. Three or four shots in a nice little cluster, then one or two out in left field because I lost the fight with the stock on those shots.
Here's the last group I shot today at 200 yards as a perfect example. If you exclude the one that I dropped way low it's a 3/4" group, but with it included it's almost a 2.5" group. Aggravating as all get out!
The rifle clearly wants to shoot, I just can't seem to win the fight with the stock for five consecutive shots. lol
Something coming loose in your scope mounting or action screws?
Played with my 75gr A-Max loads in my .223 last weekend by trying to seat them deeper. I went .003 deeper with six sets of bullets to see if I could find a magical node. It happened at .021 off the lands. I went back on Sunday in the wind to see if it was repeatable. It is. 100 yards
Just started load development for a Savage 12fv in .308. Going pretty well so far. 5 shots @ 100yds.
This is a 5 shot group from my .22-250, also a 12fv, a couple of weeks ago. Still haven't been able to do it again. Lol
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5 shots @ 328 yards, 0.21moa
243win, 107smk H-4831
Shilen 26" bull barrel
Same 243win but with Factory ammo, Federal Prem. 100gr Sierra Gameking
5 shots @ 109 yards.
Wow! There are some **** good groups here. I want you all on my side.
This was from my MTU profiled, 3-groove .223 Bolt Action
80.5 gr Berger Fullbore
Here's what my rebarreled Savage 10T/MDT TAC-21 shot a couple weeks ago, prone/bipod at 100 yards. I do like my Atlas PRS bipod
15 Rounds. Had to use the reticle "hash marks" to center on the "X" by lining them up with the outside of the black bull's eye.
6.5 C/M 140 gr ELD-M
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