.455 Hunter, funny you are looking for the old spec .357 load, I've been reloading to the older 30's and 40's specs. I've been using poly coated SWC 158 grain, the manufacturer states the coated bullets are good to 2200fps, so I'm good to go on fouling issues. From what I can tell they are pretty hot loads, haven't chronyed them yet they closed the National Forest in AZ till we get some rain. I've been shooting them out of a 4" L frame.