Scott: If you are shooting deer at 80 yards and less, all that you need is already the best deer medicine you can shoot in a BP gun-- the Patched Round Lead Ball. In the river bottom woods that I hunt, you can't see 80 yards, much less get a shot at that distance. My kills have been at 40 yards down to 2 yards. Shot placement is NOT difficult at those ranges.
My point about the Reagan shooting is that hollow points, and collapsing point bullets don't always work as planned in real life. They are a valid effort to improve performance, but Shot placement is the most important. Round balls tend to travel in a straight line, and don't ricochette worth a darn. Conicals veer off the POA widely, for no apparent reason, and other times after hitting the thinnest of bones. When you consider the trade off of heavy recoil, and questionable performance, I believe the balance scale tips in favor of what our ancestors used to kill deer for hundreds of years- the round lead ball.
You have the right to choose to try other bullets. That is why this is a free country. However, If you are asking for information and advice, don't expect us to blow smoke up your pants, just to make you feel good about your choice, when we think its a bad decision.
I will freely admit to being biased about Traditional MLers, BP and PRBs. But I came by that choice after exhaustive trials, tests, studies, reading, and talking to experienced shooters.
Every time I kill game with a PRB, I do an autopsy of the wound channel to see what happened and when. I am always continually amazed at how effect a round lead ball is on deer sized game. On the one rare occasion I recovered my ball, smashed against a broken sternum, but held in by the belly hide, after taking the top of the heart off, It was slightly larger than a quarter in diameter. It had broken a shoulder bone,pierced the left lung, then cut a wide channel the length of the heart, and only stayed in the chest because it hit the rib bones and sternum cartilage at a steep angle after it was already flattened.
I have seen similar performance using a 12 gauge shotgun slug, , but I this was from my .50 caliber rifle, using a .490 RB. I don't think you can ask any more of a projectile fired out of a traditional ML rifle.