I bought some .45acp at shoot point blank while I was using the range at the greenwood location. Shot just as good groups with my witness elite match as the Federal I brought with me.
It is pretty weak (probably warm .40) but haven't had any issues cycling or anything. The brass hasn't been reloaded yet, but that's the plan.
I'm adding a stronger recoil spring next range trip, so I expect the Ammo, Inc. loads to be too soft to cycle. Buffalo and Underwood hopefully will - that's what I want it for anyhow.