First Off the world of modern muzzloading has NOTHING to do with old flintlock shooting and the ideas that surrounded them and their capabilities!!!! NOTHING.. a modern well made inline, modern low flash primers, 777 pellets and especially the new scopes, like the Nikon's BDC's and Leupold's Ultimate Slams make 150, 200 and 250 yards no big deal... once I sighted in my new Triumph Bone collector I had no difficulty hitting a pie sized metal plate at those distance by using the DOTS system on the first day of shooting it.. The bullet worked extremely well, my son who shot the rifle one time shot a big ole' doe last week at 150 yards with no problem whatsoever.. So I'd say modern muzzloading is more than capable with very little problem of shooting to 250yards without much effort...thanks to modern advancements.. especially in scope technology..amazing stuff on the market....