Anybody out there reloading 22 TCM or forming cases from 357 Mag or .223 brass? I am having trouble getting reformed brass to go into the chamber of my Contender. No problems with factory ammo. The .223 cases don't want to go all the way into the chamber and the barrel won't close. I can chamber the 357 cases and get them to close sometimes with a little help. Also when reloading factory cases, how do I keep the shoulder from being pushed back? Should I neck size only? I don't crimp much because it's a single shot. I cut the cases, then use forming dies, then reload. I normally load 40 or 45 gr Nosler Ballistic Tips with WW 296 or 2400. What am I missing?