what causes this ? pic inside.

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AKD

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This was a .22mag at 100m I see this kinda string grouping every now n than with other rifles and that as well. Ide say barrel droop but im not sure. wondering if anyone knows ? maby its human error ?
 
ammo velocity might be it maby. this was a .22 at 100m after all and im not sure exacly what order they hit. I just assume it was top to bottom.

Barrel heating up was kinda my guess as well. I had taken 2 shots right b4 that group to warm up the barrel a bit. At the same time it is a heavy barrel on the gun.
 
i only had 15 rds unfortunately. and the other 8 I used to zero the scope. Ill take a pic in a min of the entire circle.

after just looking at the target i think its clear barrel heating up. you notice from shot one to 7 they get lower and lower.
 
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now let me walk u threw this pic. the bulls eye and the one to the right were the 2 warm up shots i was talking about. As u can see i was still not 100% zeroed with the scope. I thought i was and had aimed on the left side of the circle. 2 quick shots. the last round i just tried to hit the bulls eye again. 5rd clip if ur wondering.


and just a cool pic from my phone I thought u might enjoy. @ work in wainwright.
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I was thinking barrel droop at first and thats why i posted. A .22mag with a heavy ...... i figured barrel droop was impossible.

i feel kinda dumb for not thinking about it but im sure the string was caused by the inner dia of the barrel expanding and causing the loss of velocity.

Remington Premier accu-tip = good ammo btw.
 
Really odd. I'd benchrest it with that ammo and another type and see what happens. And don't change your point of aim when shooting a single group so you can tell what's happening instead of trying to remember what your point of aim was for a particular hole in the paper.
 
If you get that type of sub 1" group at 100m with a factory 22 mag and factory ammo, I would be THRILLED (looking at that 4rd group on the right on the pic that in a vertical line).

Did you have the action bedded properly in the stock? What mag of scope are you using? Low mag, aiming at a circle allows for a huge amount of aiming error.

If this type of accuracy is consistent, buy as much ammo from the same lot you can afford. You got a keeper.

Jerry
 
Ever consider head wind or tail wind condition?? quickest reason for verticle that I know.
Takes the bullets slightly left and right at the same time because it is rarely square to the shot.
 
The most likely explanation for the stringing in a four-shot, 100m, sub-1" .22mag group, is that this is simply what the group happened to end up looking like. Go out and shoot several separate 5-shot groups, and see how big they are (smallest, largest, and average). See if there is a particular shape to the groups, or not; it will take many groups to decide if there really is something consistent happening, or not.
 
I have shot thousands of groups as part of my job of testing various lots of ammuntion. I use a 24 X or 36X scope at 200 yards, aiming at the corner of a square black target patch. I can see the groups form, shot by shot. By shot 5 I can be excited, but by shot 10, it is just another average group.

I suggest you shoot several 10 shot groups and see what you get. How a 5 shot group happens to form does not mean much.

If you want to impove accuracy and consitancy (same mpi from one day to the next) , bed the action and free float the barrel.

Ammo varies form lot to lot, and each rifle will have a distict preferance. If you have found a lot that works well in your rifle, buy a case or two.
 
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