bronko22000
.45 cal - 200 gr 40 cal bullet - 80 gr Pyrodex P
50 cal. - 240 gr 44 cal Horn XTP - 90 gr FFFg
50 cal - 275 gr Maxihunter - 100 gr FFFg
50 cal - 320 gr REAL - 90 gr FFFg
54 cal - 230 gr PRB - 80 gr Pyrodex RS
From the list above - i think I wold go with the heavier 320 grain real but since it is an all leadbullet I would really want it heavier than that...
If I were making the myself I would go with a .458/300 grain Nosler or Barnes or if they aren not available a .452/300 grain Gold Dot...