Ringing the gong(video) with a hot barrel?

Gormley Green

Gormley Green

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Got out to the range today with a new Springfield rear sight installed on Norc shorty. Zeroed at 25 yard paper (front of vid) and started after the gong (new piece of 8"x10"x0.5" AR400).

I hit 2 or 3 5/5, some 4/5 (in the vid), and then it really started going downhill. Do these rifles start getting pretty squirrely with a hot barrel or was I just getting flinchy after ~50 rounds? I noticed this the last time I was shooting steel at 200 as well. Inbound I have a new op rod spring guide and spring, will this perhaps tighten up my hot barreled grouping?

As always, great fun to be out shooting anything with the shorty (especially steel)! :D

[youtube]6ioX3LxwH5Q[/youtube]
 
Do these rifles start getting pretty squirrely with a hot barrel or was I just getting flinchy after ~50 rounds?
Click to expand...

Mine would.
Shoot paper, heat her up and keep shooting till she starts to wander.
You may notice a pattern. But, you will wear out your barrel sooner :(
When heated, mine would wander up (ish) & to the right (ish)

Looked like a fun day :D Always nice to see someone enjoying their M1A.

And there's nothing like that "twing". Always makes me smile.
 
WWIII said:
The Norc barrels are soft and thin and when heated up they tend to be more susceptible to barrel whip thus becoming less accurate.
Click to expand...

The Norc barrels are soft and thin?!? As compared to what? Where did you come up with those little jems?

Unfounded opinions like that tend to spread around as fact after a while.
 
I find mine does the same thing. Around 15 plus rounds and it starts to wander. I think that's to be expected with a standard weight barrel. Someone correct me if I'm wrong, but aren't the Norinco barrels simply standard USGI profile?
 
I noticed stringing on mine.
Then I called the Doc to pick his brain. He said that if I have the gas lock on super tight then it will cause some stringing. So he then told me if I am taking my rifle up to the range to blast off a few hundread rounds to take the gas lock off and flip it around. So when the system heats up it will have room to expand. Then he proceeded to tell me that this only works on Nork's & Poly's and will not the GI's or Springfield gas systems as they are made the same no matter witch way you flip it.
So in lay mans terms. If you are shooting 40 rounds on slow fire maybe 1 shot ever couple of minutes then get that gas system nice and tight. Now if you are shooting like me :ar15: flip the lock so it's a little loose and have fun.
But then again ask the Doc cause he is way better at explaining the technical stuff more than me.
 
I was using the Norc ammo that came with the rifle from CanAmmo. I have not got the rifle hot and she targets with other ammo. So I haven't really attempted to figure out why the pattern opens up aside from posting here! Just wondered if anyone had any ideas.

Could you elaborate on flipping the gas lock? I thought that would turn the rifle into single shot?
 
Not the gas valve. The gas lock is a figure 8 shaped piece that is threaded onto the barrel and supports the gas system. It's just behind the nut that opens up the gas system.
 
Gormley Green said:
Got out to the range today with a new Springfield rear sight installed on Norc shorty. Zeroed at 25 yard paper (front of vid) and started after the gong (new piece of 8"x10"x0.5" AR400).

I hit 2 or 3 5/5, some 4/5 (in the vid), and then it really started going downhill. Do these rifles start getting pretty squirrely with a hot barrel or was I just getting flinchy after ~50 rounds? I noticed this the last time I was shooting steel at 200 as well. Inbound I have a new op rod spring guide and spring, will this perhaps tighten up my hot barreled grouping?

As always, great fun to be out shooting anything with the shorty (especially steel)! :D

[youtube]6ioX3LxwH5Q[/youtube]
Click to expand...


That's good shooting at 200meters with that shorter sight radius and unless you have a .062 front sight, a nasty wide sight blade, though i'm sure you were probaly shooting six o'clock. Sounds loud, I'm sure the muzzle blast is higher than a 22"bbl.
 
RememberTheSomme said:
That's good shooting at 200meters with that shorter sight radius and unless you have a .062 front sight, a nasty wide sight blade, though i'm sure you were probaly shooting six o'clock. Sounds loud, I'm sure the muzzle blast is higher than a 22"bbl.
Click to expand...

Thank you. The front blade pretty much hides the gong at that range.
 
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