I have loaded lead 200 grainers into .45 Auto Rim cases over 3.5 grains of Bullseye, the same target load I feed my Gold Cup but in the rimmed case. For bullets, I cast the Lyman 452460 SWC or use the swaged Speer SWC. I seat them just like in the ACP case and use the same taper crimp as the ACP case.
I have never clocked it but the books say about 730 fps.