I find that 451 or 452 cast and sized bullets work fine for target and I have used them on several deer with no problem;I cast them from wheel weights and size them for the gun. The 44's are touchie because of the sabot your fast burning powder like 777 will turn them inside out some times, most guns will shoot them with a fast twist and a light load of black ,pryodex or APP-FFthe FFF grade of powders don't seem to work on them for me either.Lee