I recently purchased a CZ 550 American Safari in 375 H&H Magnum. This thing shoots like a dream. The trigger has me spoiled. My only complaint is that the action is a little rough (well actually its a LOT rough). I have herd that these actions can be smoothed up or polished. My question is, exactly how do I go about this? Is there a special compound to use? How do you get inside the bolt rails? Thanks for your help. I don't want to mess up my new "friend".