Since I started reloading in 2000, I've been a full-length resize kind of guy. I'm mostly a hunter that shoots and not the other way around. Then I started reading here and got hooked on the idea of Lee Collet dies. I tried them and all of a sudden I'm shooting much more accurately, so I start buying Lee Collet dies for all my regularly shot chamberings.
I've forgotten one thing: after you start neck sizing, when do you give the brass its next full-length resize?
It really depends upon how hot your loads are. Mild loads may go 3-5 shots. Hot loads might not make it 2. My best advice is after firing, try to chamber the case again. If it's tight, then FL size it. Don't wait until you have loaded 50 rounds and go to the range to find out that they're too long.
