01-23-2018, 10:13 PM
Guys:
Lets say you have a piece of empty Grendel brass. Sized and ready to load.
If you tried to chamber it in a Grendel chamber using a 7/62 X 39 bolt, it would NOT chamber. The empty brass itself would not chamber, let alone a loaded round.
If you used a Grendel bolt (.136 face depth) with a chamber cut for the 7.62 X 39 bolt, it most certainly would chamber and would shoot. You would note the shoulder got blown out enough for you to see it with your own eyes. Kind of like shooting a .308 out of a 30-06 chamber but not as blown out. You will not blow up your rifle, either. I blew out a few pieces of Grendel brass this way deliberately many years ago in an experiment I was running. The experiment was a failure but I was never worried about damaging the rifle. No, I would not shoot a diet of ammo through this combination of bolt and chamber.
Short throating and head space are two different things. You can have a perfectly headspaced chamber with a short throat that won't let you chamber a live round without having to seat the bullet way deeper than any loading manual would advise.
Short throating is generally cured using a finishing reamer.
LR55
Lets say you have a piece of empty Grendel brass. Sized and ready to load.
If you tried to chamber it in a Grendel chamber using a 7/62 X 39 bolt, it would NOT chamber. The empty brass itself would not chamber, let alone a loaded round.
If you used a Grendel bolt (.136 face depth) with a chamber cut for the 7.62 X 39 bolt, it most certainly would chamber and would shoot. You would note the shoulder got blown out enough for you to see it with your own eyes. Kind of like shooting a .308 out of a 30-06 chamber but not as blown out. You will not blow up your rifle, either. I blew out a few pieces of Grendel brass this way deliberately many years ago in an experiment I was running. The experiment was a failure but I was never worried about damaging the rifle. No, I would not shoot a diet of ammo through this combination of bolt and chamber.
Short throating and head space are two different things. You can have a perfectly headspaced chamber with a short throat that won't let you chamber a live round without having to seat the bullet way deeper than any loading manual would advise.
Short throating is generally cured using a finishing reamer.
LR55