Just subscribed to Ammoguide.com, and they have 3 pages with 55 loads for the .460 Rowland listed, as well as a lot of info on the cartridge including a detailed drawing with measurements (case length, diameter, etc). The loads are with Power Pistol, True Blue, AA-7, Longshot, and Blue Dot powders, various bullets from 165gr to 265gr. Velocities are from the 1100fps ranges to a max of 1543 with a 185gr Hornady.
Of the powders listed, the only one I have on hand is Power Pistol, but I like the looks of the loads for it. Most loads seem to use Federal 150 primers, but some use Winchester LP (which I have, and may use).
Weather here is getting better, so I hope to get mine sighted in with the factory ammo I have and then work on some loads, mostly at first with 200gr Hornady XTP's, as I have a bunch of those on hand. The listed loads for these with Power Pistol run to a max load getting 1472fps.
