... well he can shoot 45 Colt ammo in the gun...
I also load a fair amount of 454 Casull... My brass is Starline, no matter which dies you use, I like to finish with the Lee "Factory Crimp" die ( I shoot in a Ruger Alaskan, & have jumped crimp on factory loaded rounds before )
... I like to shoot hard cast, gas checked bullets, with deep crimp grooves... I don't get particularly good case life, but put a heavy crimp in a deep crimp groove... so 4-8 times is pretty normal for me from new / unfired Starline cases
In life you either make dust or eat dust...