Originally Posted by CSACANNONEER
.45acp shotshells work great in a wheel gun. In my experience, shotshells in any semi auto pistol do not cycle properly if at all. Personally, I'd rather know that my gun is going to cycle. So, now I only use revolvers when carrying shotshells in a sidearm.
I've put a magazine of them through my 1911 and had no issue. I suspect higher end 1911s with tighter fit and heavier springs might not fair as well.