lets not forget there are substantial downsides to the 1911 and 45 acp. take your 1911 bias out of it. the fact is the 1911 is a heavy gun that is very much rounds limited. if I am going to war its going to be something double stack and polymer framed. If I am limited to ball ammo I would probably compromise and run a 40 and it would be a glock. If I could run hollow points 9mm would be just fine for me again glock. I will be saving about a 1# in weight and able to fire double the rounds.