Home Forums Hunting & Shooting AR and Tactical Rifles 7.62x39 barrel diameter?

Ok, before I do something dumb with something I've never worked with(we found the mags, thanks Lewis!!) the nephew has the upper, its an ER Shaw barrel... All the barrels made here that I was aware of, were 308 diameter, am I safe assuming that for the shaw barrel also, its Model 1 Sales upper, need to know before ordering dies/bullets.. on Monday.

Thanks, Jeff

Jeff;

Before you order dies, let me check to see what mine are. I don't need them.

slug the Bbl. man, don't take a chance
You did explain to him not to shoot the .310-.312 import ammo.

Jeff;

I have a set of Lyman 7.62x39 Russian dies (no indication as to whether they are .308" or .311"), that if you want, you can get rather cheap....

Lewis

I'm a pure dummy for sks rounds... nope, we shot all kinds of surplus stuff through it, worked fine, no pressure signs...

Guess I need to call Model 1.... and or take the flash hider off and slug the barrel too... Never done that.... grr...

Jeff

I keep a box of .45 and ,36 muzzle loader round ball on hand just for such tests. A plastic hammer and wooden dowels do the trick(horrors)

That has always been the problem with 7.62x39. US manufacturers bore it .308 the rest of the world .311+
you get limited bullet choices for .311 hand loads, but shoot a .308 in there and accuracy is a pipe dream.
Shoot .311 "cheep", thats a relative term, import ammo of .311 in a .308 and you cant expect the best either.

Funny we just covered this in the 5.56 or .223 thread.
here is another case where a out of speck foreign military round shot in a American .308 chamber could run dangerous high pressures, But no one is putting that all over the net or in back to back NRA mags.

Yep, shows anyone can be a dummy.... Don't have small balls... but have 45 balls... may find the right size sinker though, mallet it will be. Just in far enough to imprint right? Then back out...

Cheap is up to him, I"ll remind him what I didn't think about.. his choice on blowing up the gun, I actually think he was so unimpressed with accuracy, that he'll be loading from now on out...

Thanks, JEff

I send it all the way through with a wooden dowel, heck once you have beat the crown to death in for the whole thing 45 will work fine, perhaps better, it Will completely fill the groves and any extra will shear off.

I don't see it so much as a safety issue , much like my stance on 5.56-.223, as much as people were getting patterns instead of groups and not knowing why. Mini 30 got a bad rap on that one shooting the cheep import ammo with a .308 bore.

NO sluggin needed!! Got verification from model one and er shaw, its 308.. good thing, I almost ordered tsx bullets but they would have been 311

Interesting info on the ammo, I"d have thought it tough to shove 311 down a 308 bore, I guess as long as its not penetrator cores it might be fine depending.

Oh yeah, just found some 54 maxis.... they could work too for slugging .......

Jeff

try to run a .308 down a .270, well now you find out how strong you action is.

Was firing a 7.62x25 SMG once and some one had put a 9mm (.355) some where in the mag. Got some smoke, and back spray of the charge, but no injury. The bullet stuck in about 4 inches.

Never understood the Americanization of the 762x39. It is .311 all over the world. it always has been always will be. To produce guns in the US that are .308 is to spit in the face of reality. Sure there are more bullet choices for the reloader in .308, but I just don't think most people will spend a lot of time tweaking the load for an AK or SKS.

My bet is that the US companies had .308 Bbl.s and that was that.