I've taken whitetails and hogs with mine using nothing but Winchester White Box Value Pack 240 grain jacketed soft points. IMHO they are the best all around load for most 44 leverguns.
Effective range is probably more than 100 meters but since I use open sights and my eyes are getting older I limit my shots on whitetails to inside of 80 meters ... I may stretch that for pigs but I rare have to around here. They usually like to come in close and that 44 will knock them down in a hurry.