Dave, I doubt you'll find any anymore, but Remington used to have available in bulk their .454 255 grain bullet for the .45 Colt. Closest thing to the 454190 I've seen, it even had the shallow hollow base. I will have to look around but I should still have some around here that I got from JP Lower a few years back. It was the closest to the original bullet out there, just wish I could find another source for them, they're not listed on the Remington website and nobody that I've found bothers with the hollow base anymore, other than .455 Webley. I used to use an Ideal 454190 mold and even it didn't have it. Would love to find a 230 gr version as well for the Schofield ctg.