I'm using the Lee dies for reloading .357/.38
To answer your question...
I back out the bullet seating die so there is no crimping at all. Approx. one full turn out.
For the Factory Crimp Die... turn out the crimp aduster a few turns to start... then I adjust the die so it just touches the shell holder, Tighten the lock ring. Place a cartridge with seated bullet into the shell holder. Run it up into the die all the way, then turn the adjustment down until it touches the mouth of the case. Then, run the cartridge out of the die and I adjust the crimp in about 1/2 turn for a light to medium crimp or you could go 1 turn for what would be a really heavy crimp. Then crimp away.
Last edited by bkRuger; February 27th, 2017 at 08:48 PM.