I have a Kimber Custom Stainless that I had the barrel changed out for a Briley fully supported one. My first problem was I had no problem, I had wanted a gun with a supported barrel. Anyways, now it is very fussy about the ammo. The bullets have to be at least 1.268 (I am shooting 230 gr RN jacketted)and have a very tight crimp otherwise it jams the rounds back in the case when it hits the supported feed ramp. I have a stock custom royal and it will feed anything. I can take a bullet that jams in my stainless and feed it through my royal with no problems. I am seriously considering selling it because it is so picky. however I have about $1600 into it so I hate to sell it. I would like to keep also so I was wondering if there was anything I can do. Your help is much appreciated.