Getting ready to start reloading a bolt action in .223. From what I understand in determining max cartridge length if ignoring the magazine, I think what I should do is size a case, lightly put a bullet in it by hand, put it in the chamber, slowly close and lock the bolt, and slowly remove the cartridge and measure it. That should give me my max length and back it off by .010”. Is that right? Will the neck be too tight for the bullet to push back into the case? Any other issues to be aware of? Thanks.