I am sorry to hear about your problems... I had some serious issues with a Montana and had to send it back to Kimber.. The chamber was out to the point factory ammount would not load.. they worked the chamber.. I got the gun back and the best I could get it to do was 2.5 to 3 inch groups (three months of reloading and 2 factory rounds later, I sold it.... I then swore I would never buy another product from Kimber. (one good choice)
They were very helpful on the original repair.... pain in the behind on the accuracy problems.