Not likely to break it, but will put undue wear on the part. The bolt SHOULD be worked smartly if it's a New Style Ruger rifle with the blade ejector. It shouldn't be hard, just smart enough to throw the brass clear of the ejection port. The Remington should NEVER be worked hard. It's got a plunger ejector that does all the work for you. All bolt actions should be worked smartly to close but you should not SLAM the bolt home. This does nothing for speed on the next shot and only serves to piss off people like me who HATE to see guns abused. We might own it someday.
