One thing I do not think I saw here is case gauges. Case gauges not only measure the length of your case but the gauge will also tell you if your newly made round will properly chamber.
An early mistake of mine was to over expand some .45acp cases. I did not know any better until I got to the range and discovered the mistake when I attempted to chamber the rounds. Knowing about case gauges would have saved me a lot of grief.
I now own Wilson gauges for every caliber I shoot and every round is checked using them.
