WHAT DOES BEST AMMUNITION BRANDS MEAN?

A U.S. Navy 7.62 mm GAU-17/A Minigun Working experience with the MG forty two led to the US issuing a prerequisite to interchange the getting old Browning Automatic Rifle with a similar weapon, which would also substitute the M1919; just utilizing the MG 42 alone was not possible, as being the design temporary expected a weapon which may be fired