My 9mm's are giving me fits. Loading data shows OAL for many recipes to be around 1.12". If I get anywhere near that, my Glock or Taurus won't chamber the round. I have to seat my boolits deeper.
So I try to seat the boolit as long as possible, but that puts it right up to the beginning of the rifling.
My question is, how far off the rifling do you keep the projectile? Do you ever seat boolits to where they lightly kiss the rifling? When I load cast for a rifle I make it so the boolit jams into the rifling. (Those are target loads.) That won't work with a semi-auto handgun.
What's your rule-of-thumb for OAL?