Lead or jacketed don't matter to reliable feeding, so long as you stick with proven profiles, weights and diameters; generally .451 for jacketed and .452 for lead/coated. Cartridge OALs are pretty well established for various bullets and unless your pistol is a finicky SOB, it won't be hard to find an OAL that works for you.

What matters greatly is your crimp die. I used to dread loading 45 Auto, because best reliability meant sorting headstamps. I got my first Hornady Taper Crimp die about 1993 and all my problems vanished. I am still using that same die, too.


Direct Impingement is the Fart Joke of military rifle operating systems. ⓒ