[Boberama]

I can't find very much info on this load. I'm don't shoot .50, but I want to know how this performs. So far I've read:

Muzzle velocity: 3,050 fps or 2,930 fps, according to various sources, including the USMC.

According to TM 43-001-27 it is 2,810 fps at 78 ft from the muzzle.
But is that the muzzle of the M2HB?
The USMC says 3,050 fps, but how could it lose so much velocity in 78 ft?

Projectile Weight: I've read 710, 707.6, 720 and 750 grains. Which is it?

Powder charge: I know this one. It's 235 grains of WC 860.

Cartridge weight: It's 1813 grains.

Has anybody pulled a bullet or knows the correct weight?
Weight for M2 API would be appreciated as well.


One last thing, what is the cyclic rate of the M2HB?

I've read 500 rpm, 450-550 rpm, 450-500 rpm 450-575 rpm, etc.
Somebody should time it properly.