HI Everyone. I just bought a P3AT, and I put a box of Sellier and Bellot throught it. The gun functions great. The only problem is the way this thing ejects shells. It throws them up and back, but not like autos I have had before. The gun was throwing shells on the roof, of the shelter house I was standing infront of. When I shot inside the shelter house they was bouncing off the celing. Is this normal?