I agree smokepole, thats the raeson I sold the Kimber I once had. It shot one good group the whole time I had it, sent it back to Kimber. They said it was fine, it still never shot good. It also had a bad spot in the chamber just below the shoulder,every piece of brass that came out of the gun had a ring where the brass flowed into a crevice that went all the way around. I suppose the reamer had a burr when the chamber was cut. I can still recognize brass that was fired in that gun(2 or 3 years ago).
