I brought my M&P Sport out to shoot some Wolf ammo to make sure that it would cycle and it did without a problem, good now I can order another 1000 rounds. The range I shot at is a smaller range around 50 or 75 yards. I did not necessarily think twice about it after reading a sign that said "no high powered rifles shot on this range (which indicated certain .30 cal rifles, including AK-47 etc, but did not include .223 or AR15 style rifles) Is my mp sport considered a "high powered" rifle and did I make a mistake shooting at this particular range?