I just finished casting up a few hundred 45acp bullets using the Lyman 452374 mold. I like to size them to .452. I measured several after casting with WW and found all of them small ranging from .449 to .451. I powder coat so I increase the size a bit over.001. My question is, what is the best combination of alloy does everyone use? I also have some #2 laying around to use but I prefer to use that for my magnum boolits + some tin.