I tried out some of my slugs over the weekend. Well two rounds exactly. The first was a 700X with WAA12SL in a Cheddite hull, did not crimp well, needs an undershot card I think. It shot but did not achieve stated velocity. The Lee data that specified Herco with a WAA12 wad for a 1 oz slug, must be just plain wrong. It really needs a longer wad, like a WAA12L or SL. The crimp was so dished in, I did not expect it to perform well. And I was correct in my predictions, it turned out to be a blooper and I had a 1 oz slug about 6 inches down the barrel that had to be driven out. I'm going to try some Federal 12S0 wads with 700x and Titewad. The 12S0's seem to fit the Lee slugs better than any of the other wads I have.