RE: bolt hard to close....
I'm not sure if it's just my imagination or if it really matters, but I had some brass that didn't always chamber well (I usually only neck resize). So I started puttinga witness mark on the base of the case. That keeps the fire formed case oriented to the chamber. Like I said, I don't know if it makes any difference or not, but the problem went away. Maybemy chamber is a little bit egg shaped.