Bigcountry, don' t really know if you upgraded going to a wolerine from a T/C.But muzzleloaders are accurate and are very capable of harvesting even large game(elk,moose,brown bear,heck even cape buffalo).You have probably heard this before but I will say it again,just because something works well out of one gun doesn' t mean it will work out of yours.You need to try verious different load combinations to find out which shoots best from your gun.Don' t assume your gun won' t shoot 150 gr.,try it and find out.I would start low and work my way up.Part of the fun of muzzleloading is exprimenting and finding that perfect load for your particular gun.Good luck