I have a Kimber 84M Classic Select in .257 Roberts and it is one of my favorite rifles. Mine shoots 3 shot groups into 1-1.5" at 100 yards as long as the barrel does not heat up too much. I have a Leupold VX3 2.5-6x36 scope on it and feel that this scope is perfect for this rifle. My rifle has no problems at all. I have shot 5 deer with it thus far with excellent results. Overall excellent deer rifle in my opinion.
Wyohome, if you have such problems with your rifle, why not send it back to Kimber for service?