Ok, I have a John Ross S&W .500 on the way. This may be a dumb question, but where do I find a 'light' load for this? It seems like everything is huge bear loads. Maybe I am just not use to the numbers for this, but with my .454 I can shoot 45 to just put some rounds though it without going up to the high power rounds. I asked one guy and he said hand load them. Does someone sell something in town that is easy to shoot in this gun?