10-25-2013, 01:26 AM
Trooper Wrote:Actually they are now using the .300 Win Mag Mk 248 Mod 2 now that is about 200 grain.
Not that I've heard. The original loading was the MK248 Mod 0 which consisted of a 190 grain SMK fired at 3,000 fps. This was recently replaced by the MK248 Mod 1 which fires a 220 grain SMK at 2,850 fps, which generates an average chamber pressure of 68,100 psi (with a maximum north of 70,000).
