I have a gold match also, and if you read the owners manual it says to load to a OAL of 1.260 I have found that number to be majic. ALso The best round I have found in the kimbers (I have 5 of them) is 3.5gr titegroup under a 230gr rn. but you will need to change your recoil spring down to a 11 pounder. It will drill bullseyes all day with barely any recoil. great plate load also.
10MM Magnum.... tried the rest, now I got the best