How much should barrel heat affect accuracy?

[Unregistered]

My brother claims that he fired 4 of the 20/5-round magazines in 2-3 minutes. So that's 20 in 2-3m, and he says that he was "off paper" by the end at 100 yards. Should accuracy be affected to that degree by that pace of shooting? Or could it be the Norinco rear sight rattling loose?

 

[G37]

Depends on rifle... had a Mini-30 that would behave as you described.
However, my AR is fine

 

[wobbles99]

It's possible I guess. I've put quite a few rounds through mine before allowing to cool and it stayed pretty well on target.

Could it be the surgeon and not the scalpel?

 

[Couch-Gator]

The problem you describe for me is that the rear sight (height) goes out of wack. Unlikely that heat from 20 rnds in a couple minutes would do it.

 

[Juster]

My L1A1 used to burn oil sometimes, but never off paper at 100m.
If we are talking M14, could be the stock or the sights.

 

[Unregistered]

Good, I'm thinking the rear sight then. Plus my brother is not the greatest shot. This isn't a gun for newbies, I don't think.

 

[flecktarn]

I did shoot 30 rounds with my M14S (one 20 round and one 10 round-mag) in 3-4 minutes. 1-2 minutes after - with a VERY hot barrel, I fired 5 or 6 handloded rounds at 100 meter. They all was in a 1 inch group. Could´t belive it first...but my rifle did´t care about the hot barrel at all.

 

[Cocked&Locked]

Good, I'm thinking the rear sight then. Plus my brother is not the greatest shot. This isn't a gun for newbies, I don't think.

funny I thought it was an easy rifle to shoot.

 

[Craftsman 441]

Shooting an M14S is simple. Unless, of course, you're simpler.

 

[cancer]

Shooting an M14S is simple. Unless, of course, you're simpler.

LOL nice

 

[zthou]

Barrel heat will always affect groups. The benchrest crowd always use heavy barrels because of this condition. Those who shoot minute of moose don't care too much about this situation,however, those who are in a competition, shooting paper,or hard core gopher guys, shoot with a heavy barrel or fluted model.