The USMC did extensive testing and came back to the 1911/45ACP as a proven battle weapon.
The USMC didn't test a damn thing. Some one cooked up the idea of taking mothballed 1911's and reworking them at Quantico. Those guys can build a rifle that'll shoot but the didn't/don't know schidt from shinola about 1911's, and when the guys started shooting the hell out of them, the hardest working SOB in the unit was the armorer. He didn't get much sleep when a bunch of them were on the range all day.
