Been shooting a ML for only about 2 years now. So I have several questions. I shoot a Percussion .45 TC Seneca with a .440 Hornady lead PRB (which I assume is 127 grains) and 50 grains of Goex FFg. It is accurate out to 50-55 yards. Where I live here in the East, most shots are less than 75 yards. Some folks on here say that their rifles are tack drivers at 100 yards and sometimes beyond. #1 If I was able to get my .45 accurate to100 yards, would a 50 grain load of FFg pack enough punch to kill a Whitetail at that distance? #2 The TC handbook says that I should only use FFg from .50 to .90 grains maximum. When I was working up a load and shot .60 grains the accuracy fell way off so I didn't increase the powder charge anymore figuring it would be the same with 70,80 and 90 grains. Am I correct on this? #3 Having shot center fire rifles all my life with fine iron sights, how the heck do some shoot 100 yards with tack driver accuracy with the somewhat "chunky" open factory sights that I have seen on most Muzzleloaders including mine? Thanks all. Flashpoint!