.50 ML and .45.70 were what I was interested in at the time. I've got too much in the works now to start in on anything else, but maybe later.
Have you downloaded the 2014 Knight catalog? It lists the KPX in .50 w/bare primer or plastic jacket, .45/70 and .444. The .444 has a 20-inch twist, which ought to make some folks happy.
