Many years ago I used to shoot IDPA for a few months. I started with my Kimber Compact .45, and switched to a Ruger in .40. I got "hammer bite" bad by the Ruger and traded it for a Glock .40 full size (probably Gen 1). I found out about the K-booms later. I didn't reload for .40 then so I wasn't worried about the unsupported chamber. I have since started reloading for .40, but saving them for a different gun.
I now have 2 1911 .45's and would love a 1911 in .40. However, doing a little research I've read that the 1911 doesn't like the .40 and there are feed problems.
Some of the threads I researched recommended the 10mm in 1911 instead of the .40. Seems that the slightly longer bullet feeds better. Any one here shot j-words in a 1911 .40 or 10mm?
thanks,
CC