Funny, I was looking at that yesterday myself. The .45 Raptor does look like a good candidate for a project like this, but right now the stuff to make it happen seems as rare as raptor's teeth. I haven't found anyone who chambers Savage barrels yet and headspace gauges are just as hard to find. Heck, even .450 Bushmaster can be difficult to find hardware for, and it's been on the market for five years.