I am getting into muzzle loaders, new territory for me. Cast is not. I am planning on using a Sabot, and trying the Lee 452-300 bullet. I am thinking I will keep them in the 1650 MV range. That should give me retained velocity of 1,000 or so at 200 yards. Assuming a .18 BC) I am thinking of using a 49-49-2 alloy (SOWW/COWW/PEWTER). Does that seem like it should give good terminal performance? Specifically not flattening too much at close range, yet maybe some expansion at 1,000 fps? Realistically most shots will be 50-100 yards.
Edit to add: would I be better off looking at a 250ish grain SWC design? It would save lead!