09-05-2014, 03:46 AM
Bob Prudhomme Wrote:Frazier testified to the WC that the FBI acquired WCC 6.5mm ammunition, tested it and found the average muzzle velocity to be 2165 fps. Most textbooks place the muzzle velocity of the M91/38, shooting Italian military ammunition, at 2200 fps.
could that 35 fps difference be because the WCC bullet is undersized for the M91/38 barrel, or is that fps difference inconsistent with a bullet that doesnt entirely fill the barrel?