Hey fellas I need some help. I have a tikka t3 in 300 win mag. I started reloading last year and ran into some problems. Just FYI I'm using hornady cases and Speer 180 grain spitzers. The problem I've ran into is when I chamber the cartridge, it seems to rub or cut about 1/16" of the tip off. I have played with the oal of the of the round an the problem is constant, any ideas?