[Crankylove]

It would probably work, but your brass may not like it.

.45 Auto is a tapered case, .476" at the case head and .473" at the case mouth.

.45 Colt is straight wall, .480"

May not seem much difference, but its enough for brass to swell each time its fired in that chamber, and coupled with sizing it back down, it will work the brass much quicker than normal, and shorten case life accordingly for a reloader. And, even new factory loads could split the cases in the chamber if there is too much slop around the case.

I wouldn't do it anyway, the cost to machine it for clips, and the fact that I don't really care for the brand of firearms would be huge turn offs for me.