Brent, in my limited chronographing of Longshot loads in RMC brass shells using card and fiber wads, it seems that dry fiber wads yielded lower and more erratic speeds than lubed wads. Small sample sizes, however. Have you found anything similar?
I have found that when dry, they pattern really well with longshot, and birds die really well when hit. Not very objective measures however. I have not tried them lubed with that powder. I use lubed wads for blackpowder where they also seem to perform very well, but I don't have any testing numbers for that either.
My current Longshot loads that I would like to test are 30 grs of powder, a WWAA12R, Claybusters equivalent wad, a 1/2" dry fiber wad inside of that and 535-540 grs of lead or bismuth finished with a roll crimp. They work well, but I don't really know the pressure. extrapolating from Hodgdon data they should be slightly better than 1300 fps, at 6000 psi. That's very optimistic however. Too optimistic in my opinion. But I really don't know.
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