Hi Kevin,

Just jumped in this forum again. The .450 Alaskan is a .348 Winchester case necked up to .458 caliber, (and less case taper), and designed to work through the Model 71 Winchester. It was made popular for it's ability to put a heavy bullet out of a lever action. And just for info sake...there is a .50 Alaskan.....as well. (Not to mention a .416, but we won't mention that.).

If you can find a copy of "Big Bore Rifles"......grab it. (Probably find some info online as well.) I have a feeling you'd be reading all weekend! Just put on the coffee, pick up the book, and................

Dave