Jump to content
Brian Enos's Forums... Maku mozo!

Bolt vs Gas ammo.


usmc1974

Recommended Posts

The M1A has a burn rate/bullet weight range that is recommended (some powders even say they are in the M1A burn rate range...maybe it is just marketing?). 

Never heard or seen the same thing for the AR platforms.

Link to comment
Share on other sites

1 minute ago, Dan Sierpina said:

I do know that the old rule of thumb was nothing slower than 4064 in a Garand.

the common saying for garands is nothing faster than IMR 3031 and nothing slower than IMR 4320.  Anything outside of these ranges could result in bent oprods.

Link to comment
Share on other sites

Burt,

 

  Hello, usually you can run a hotter load in a bolt gun of the same caliber than you can a gas gun.  If your bolt gun load is pretty hot and you try it in a gas gun you may start blowing primers in the gas gun unless you have some way of delaying the bolt opening in the gas gun until the pressure drops some, (pigtail gas tube, reducing the gas with a variable block, etc.).  I ran into this with some factory 6.5 CM ammo that worked fine in a bolt gun but same lot occasionally popped primers in a gas gun and had ejector swipes etc.  Same with hand-loads you can usually run hotter in a bolt gun than a gas gun.

  Hope this helps.

 

  Jeff

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...