MIke:Mike from Texas wrote: I don't know if it would have made a difference but I did not strip and clean it before taking to the range. I won't get terribly concerned until I get at least 500 rounds through it but I hope it gets better soon. BTW, this was shooting 230 grain ball ammo through it. I haven't even tried any hollow points or other ammo.
Even if the pistol appears to be lubricated when received from the factory, the first thing you should do is CLEAN and lube it. Metal shavings and grinding dust in the works will gum up the best of machine tools. I do not remember if either of my Kimbers was factory fired, but if they are they are not typically cleaned. My Kimber UC was field stripped, cleaned, and lubed with a minimum of quality gun grease before firing. I have also cleaned it after the first range session, and about every 1000 rounds since. It performed flawlessly the first time I fired it and every attempt since - maybe 2500 rounds total of quality JHP rounds and lead SWC reloads - using the factory Kimber magazines..
Bob