To me it is a non-issue whether it hurts the gun or not. Firing the gun hurts the gun! That is why after a while they get loose and need rebuilding. If dropping on an empty chamber damages something I will just replace it as a normal maintenance/wear issue. That is why you inspect your guns, rotate through a stock of competition and carry guns so when one is being fixed another can be used. They are tools, they wear, they are fixable and replaceable and it only takes money, which I have. Non-issue.