I don't do it but with a GOOD scope and GOOD steel mounts I don't think it would be a problem. What I get a kick out of it when guys use it as a handle with cheap aluminum see through rings and a $50 scope. When I worked at a gun shop I did a test where I mounted a scope in see through mounts, bore sighted it and then walked around the store for about an hour carrying it by the scope. I then put the bore sighter back in - not even close! Then again if the scope didn't bore sight right with see throughs we would just push on the scope and give the rings a little "tweek"!