Any load for any lead 220-230gr bullet would be safe. I've used 6gr Unique in lots of 45 auto loads with constant success, so I'd probably stick with that.
As for OAL, take out your barrel and make one cartridge at slightly higher OAL.
Try the bullet in the barrel, and if it doesnt sit in the chamber like a factory cartridge, reduce OAL until it does.
Also check to see if that OAL will fit in your mag.



























