Fiftydriver
Official LRH Sponsor
JB1000br,
Unless that was a +40" barrel, I would recommend dropping that velocity down to the 2750-2800 fps range out of 36" barrels.
I have a 36" barreled 50 and with that barrel length I can have driven the 750 gr A-Max to an honest 2830 fps but the primer pockets in the IMI cases actually started to loosen, not to mention, it kicked like a mule!!
Anyway, you will get more velocity with the 20n29 but that is a hot load unless it was out of a +40" barrel.
Not flaming at all, just want to keep guys safe, there is a reason the 50 BMG is loaded to the 50,000-55,000 psi range, that huge case head developes a tremendous amount of bolt trust even at these levels.
Loading to modern magnum 65,000 psi levels can stress an action dramatically.
Good Shooting!!!
Kirby Allen(50)
Unless that was a +40" barrel, I would recommend dropping that velocity down to the 2750-2800 fps range out of 36" barrels.
I have a 36" barreled 50 and with that barrel length I can have driven the 750 gr A-Max to an honest 2830 fps but the primer pockets in the IMI cases actually started to loosen, not to mention, it kicked like a mule!!
Anyway, you will get more velocity with the 20n29 but that is a hot load unless it was out of a +40" barrel.
Not flaming at all, just want to keep guys safe, there is a reason the 50 BMG is loaded to the 50,000-55,000 psi range, that huge case head developes a tremendous amount of bolt trust even at these levels.
Loading to modern magnum 65,000 psi levels can stress an action dramatically.
Good Shooting!!!
Kirby Allen(50)