1st Choice: Hornady SST. These shoot like a rifle out of my Hastings barrel out to 150. I've taken several deer with them; ironically the longest shot was 50 yards.
Honorable mention, sabot: Remington Copper Solids. Ditto on the slower, but still good out to 100 in my barrel.
2nd Choice. Brenneke. Hard to go wrong with any of them. Better to use them from a smooth barrel, though. My 1st choice for bear protection.
Honorable mention, lead solid: Remington BuckHammer. My son has taken many deer with them, he swears by them.