That is strange jb as I am having the opposite problem. The AA hulls load just fine but I am having trouble getting the primers to seat properly on some of the Remington hulls. Got so frustrated I sorted them all out and gave them to a friend. I HATE having problems with my reloader that cause me to have to stop, back each shell up a station, and then try to get things functioning properly again. I've tried different types of primers but for some reason I'm still having the issue.

So, how is the new gun working? Hopefully like the work of art that it is.