To answer the question about the "new magnum muzzleloader"; I suspect it is just the advertising department trying out some new words. Any of the present production muzzleloaders are well made enough to perform very well. I doubt that there is much that could be done to improve actual performance. The companies keep doing the little "neat stuff" like twist out breechplugs etc. All of this is nice but does not make them shoot any better. Improvements that actually mean anything are things you can do like bed the rifle if it needs it and shoot a lot of combinations to find what your specific rifle likes.