I shoot the same revolver as you. And it is the same target model as you describe. I even shoot the same powder as I found clean up was much easier, and I could shoot longer.

My load is 30 grains of APP 3f, a felt wad, then the .451 ball and then I grease the cylinders to avoid the chain fires. I find this a lot of fun to shoot on a nice afternoon. Also the power of that load is surprising as well. That is a two inch spruce plank I was shooting through.