I picked up a box of great plains .50 385gn Hollow point bullets today. Im gonna try them in my winchester x150 and was wondering about a good load to start off with. I was thinking 80 grains pyrodex RS and try a shot or two @ 25 yards and make adjustments then move out to 50 yards. Do these bullets have good expansion? The last time i tried a maxi ball on a deer i had pure hell killing it. Im used to using powerbelts,but for $9.50 for 20 GP bullets im willing to try them out. 80grains powder and a 385gn GP good enuff to knock down a mulie at 100+ yards? Im used to shooting in the 120 yard + range. Remember, im a skinny 6'3 160lb dude so how bad are these bullets gonna hurt me? lol. I think with the lower charge it should be fine but im just worried about 120+ yard bullet drop.