I don't know if anyone else cares about these numbers but I'll share a little anyway. I'm disappointed that the hottest loads that any of the load manuals show for the 454 Casull don't seem to come anywhere near it's potential. I have factory loads from Corbon and Hornady that that boast over 1900 fps from a 9 1/2 inch barrel and I get 1800+ in my 7 1/2" SRH and almost 1600 in my 2 1/2" Alaskan. Pretty good if you ask me. But my handloads loaded at and even above the so called "max loads" with a broad range of powders,Unique, Power Pistol, Blue Dot, 2400 and H110 are no where near these velocities. I show no pressure signs so I know these are not dangerous loads but good sense prevents me from pushing my luck too much. Believe it or not, it isn't at all unpleasant to shoot.
I also did some interesting comparisons with identical loads interchanging small pistol primers, std and magnum and small rifle primers, also std and magnum. They all fit the same hole and the hottest loads in the 454 call for the SR-Mag for best ignition. If anyone is interested in my results I'll be glad to detail on another post.