Almost all spots I hunt with the muzzle loader you get a 100-150 yard shot. One place 200 yards or so but I don't think I'd take a shot that far off with it. That's why I'm thinking I like the 100 grains of pellets. I'm not sure that my muzzle loader can handle any more than that which is why I've stuck with 100. I don't have the manual as I bought it used but it's a Marlin MLS-50.