Sorry for the 45-70 rant....I have used all three of the leverguns you mentioned and I still don't see the need for pointed bullets other than ones made for leveractions.A 30-30 is a 30-30 and so on.

All three are very lethal and I can't see how a pointed bullet is going to make much of a difference at all within there pressure range not to mention the effects of recoil on the pointed tips in a tubular magazine.

Good luck in your hunting.

Jayco