I have a 1911 Springfield V16 Long Slide in 45 Super and it's a fabulous gun.  It will shoot either 45 ACP or 45 Super with a spring change and it's built to handle the 45 Super (230g at 1150 fps) all day.   I shoot Remington 230g  Golden Sabres at 1150 fps for my self defense round.   It's mystified me why Springfield never bought the trademark effectively letting Ace Custom Guns kill the cartridge.