Re: Looking where to buy bulk 45 ACP bullets
Number 2 alloy as described in the Lyman handbooks is the best all around alloy for cast bullets. There are several formulas to get an approximation of it, but if you buy bullets, you have no control over that. Most good over the counter cast bullets will be of a hard enough alloy to not lead your bore especially at pistol velocities.
Avoid swagged bullets mainly offered by the biggies, Remington and Winchester. They have to be soft in order to be swagged formed. Even coated with a sticky lubricant, they lead like crazy at even moderate velocities. Maybe they have improved over the years, but I would stick with cast.
You might want to remove copper fouling from your bore before switching to lead. I have several lead only guns vs jacketed ones. In fact my Bullseye competition .45 is cast wadcutter only and is very accurate.
Good luck,
Sherlok