Yes the bullshop guy also recommended a wad over the powder. I can buy a few samples of each to try out, once i find the right one i'll place a big order. So for starters i'll go with a .452, Which others do you think i should try out?

The rifling looks to be half the thickness of my fingernail. I wish i knew what thickness patch i use for the PRB, probably help out more with figuring out the rifling depth.