You would get more response on Rimfire Central forum. They have a Kimber forum with some very knowledgeable guys on Kimbers. I am guessing your talking about a Kimber of Oregon Model 82. The 82 is a rimfire and model 84 is centerfire. Also there are different companies of Kimber all are a little different. Kimber of Oregon, Kimber of America, and Kimber of NewYork.