I have found 1 load searching the web, 7.2 gr. unique, for 950 ish fps. I tried the load with universal, and using an oregon trail 310 gr. flatnose gaschecked bullet, I got mild recoil, no pressure signs, some leading in the barrel, and I don't have a crono, so I dont know the velocity. I have no published max loads for this combo, and am looking for some help determining a cutoff point, and possibly getting a speed with the most minimal leading. slugs are .430, gun is a super blackhawk 4 5/8" barrel. Thanks