I have a Henry Big Boy in .357 Magnum, and I know it probably isn’t the optimal rifle for deer, but it’s such a handy rifle I’d like to make use of it. I’m in the mountain region of KY, and the average deer size is less than 150 lbs, and the maximum range will be about 100 yards. What size cast bullet would be best to use in this situation? Would 158 grain pushed to about 1700 FPS be enough, or should I try to really push it faster? Or should I go with a heavier 170 or 180 gr bullet at a lower velocity? Or should I abandon the idea and stick with a .308 that’s probably overkill around here?