So, since I am pretty new at reloading, should I not crimp? It sounds as if it is a little tricky to me. On the other hand if I ever do crimp I have to start sometime.

I think I will start by not crimping and see how my groups are. What type on group should I expect at 100 yards with a 300 win mag? I am a pretty good shooter, and I know it depends on who is behind the trigger, but what should the gun realisticly be able to do?