As I stated earlier I am concerned with accuracy not velocity. Your paper target is never going to notice the difference. I know that a lot of guys think that a 10mm is close to an atomic bomb. But they are not. Unless you are trying to make your own BEAR load there is no reason to keep pushing it. The lower the pressure the more "mistakes" you can make without blowing your gun up. However if you want to push your loads a bit you are much better off using longshot than #7. Secondly looking at your pictures I would hazard a guess that part of your problem was you were over crimping.