I have a Kimber 8400 in 300 WSM. It is a beautiful rifle and phenomenally accurate. However, the first round out of a fully charged magazine loads roughly. On close inspection, the bullet tip (NOT the shoulder) hits the steep ramp incline and hangs up when the cartridge is held under fully compressed magazine spring tension. If the bolt is worked briskly, the cartridge loads reliably, but as bolt movement slows down, chambering becomes more difficult. This rough feeding reduces as each subsequent cartridge is chambered.
So, my question is this! Would polishing the feed ramp reduce this rough feeding? If so, is this a task that can be undertaken by the home gunsmith? How would this polishing best be accomplished?
So, my question is this! Would polishing the feed ramp reduce this rough feeding? If so, is this a task that can be undertaken by the home gunsmith? How would this polishing best be accomplished?