M1A average group size?

[nathan0259]

Today when I was shooting my M1A it has some minor trigger work an ultimak scout rail a 7x scout scope everything else is stock. I was getting 3-4" groups at 100 yards with wolf WPA like this one


then this happened with out the flyer this would be 1"


then this happened I think this would be about 1" maybe a little over


I'm assuming this is a fluke. Does this happen to anyone else? I am new to the M1A maybe 200 rounds through it so far. Is it normal for groups to vary this much? Thanks for your input.

[bobbyfairbanks]

bad ammo bAD GROUPS. ALSO THE INDIAN HAS TO DO HIS PART TO MAKE THE ARROW FLY STRAIGHT

[nathan0259]

I don't think that 3"-4" with shit wolf WPA is a bad group that has been the average for me. I want to know if anyone else gets this wide rage of group sizes with there M1A, 1"to 4" is a big difference.

[zteknik]

Sounds like an ammo issue to me.Wolf is realy not all consistant on there loads.
Try with some good ammo and I'm sure you will see a differance.

And remember trigger pull and breathing

[nathan0259]

I'm not complaining about the 3"-4" groups with shit ammo I expect that. I just thought it was odd that the groups shrunk by 3" and I wanted to see if any of the M1A gurus out there had seen this before? Is it normal for a M1A to get crazy awesome groups sometimes or was it my dumb luck?

[bobbyfairbanks]

Sorry about the caps lock.


I have seen M14 print similar patterns before. The culprit has usually been a loose stock. I don't think we can even try and diagnose your groups till you run some quality ammo through it. We will all just waste time guessing.

[Ianski]

I have an EBR with a National match barrel in it. Ran some shit surplus stuff through it and it grouped 2-3" at 100yds, ammo is huuuuuggggeeee!

[gcrookston]

with quality ammo you may be able to diagnose the problem, if there is one.

A typical 20 round group out of my M1a with FGMM 168 gr will be 1 MOA or less from the prone position using a bipod.

below is a 20 round group I shot in 10 minutes. CTC is 1.68", but the ATC is 0.336" or 0.321 MOA.

[nathan0259]

I guess it was just dumb luck. Inconsistency drives me nuts. I don't even want to put good ammo through it for fear of getting 3" variances.

[nathan0259]

with quality ammo you may be able to diagnose the problem, if there is one.

A typical 20 round group out of my M1a with FGMM 168 gr will be 1 MOA or less from the prone position using a bipod.

below is a 20 round group I shot in 10 minutes. CTC is 1.68", but the ATC is 0.336" or 0.321 MOA.

I don't think there is a problem I'm just not use to a rifle that goes from 4" groups to 1", that's awesome by the way, do you have anything done to it?