THE 2-MINUTE RULE FOR MPI GUN

 M60 about the deck of USS Theodore Roosevelt (CVN-71) in 2006. The Preliminary variant was formally adopted from the U.S. Army in the late fifties, even though presently it had been only intended to the infantry. It was often known as the T161 right before it was adopted (especially the T161E3) and was preferred over the competing T52 in the cour