If you want to keep your rifle shooting straight, you should clean it often, using a quality one-piece cleaning rod such as Dewey Manufacturing's Nylon-Coated Spring-Tempered Steel Cleaning Rod. The nylon coating ensures against scratching the bore. A Dewey Bore-Saver Rod Guide (left) keeps the rod centered as you clean. About $28 for rod with jag, brush, and slotted tip; about $20 for rod guide. Call 203-264-3064.