Hey guys quick question. I have an M&P 15 AR15 that i can only shoot with the 22 cal conversion at my range. I shoot a couple hundred rounds every week and still haven't shot any .223 rounds through it. Am i doing any damage to the gun by shooting 22 all the time and .223 only a couple times a year? I read that .22 is very dirty, not sure what the consequences are though.


















































