I have a MP 40 that I have put about 400 rounds through it. I have been using the 165 WWB with no problems, but some questions about accuracy. Again this is a new pistol and I am a new shooter so some of the problem is with me. On Saturday I shoot a box of 50 WWB 180 that a co-worker got for me and seemed to have alot more accuracy and consistancy. Any body have some comments or did I just have a good day.