powders, primers or bullets.
Just to get me started, would you please suggest a good powder, primers and 9 mm bullets.
Powder: Alliant Bullseye. That's basically the only handgun powder I use, for everything for .380, .38 Special, 9mm, .40 S&W and .45ACP.
Primers: whatever's cheap. Lee's documentation may warn against Federal primers.
Bullets: for what purpose? Basic range or plinking ammo? I use hand cast 120gr lead truncated cone bullets. (But, mind the caveat about lead bullets and Glocks...)
I concur with the above suggestions, to get a caliper and Lyman's manual.