ok, my test are in about fiber and hard card placement in the wad. i loaded 1 1/8 th oz 7 1/2's. one with fiber only and the other with 2 hard cards. used my NH 30 in .036 choked gun and the fiber shot 328 in a 30 in. pattern at 40 yds(about 87 %) the hard card shot 329 in a 30 in. pattern( pete,FYI that would be 1 more hit
)but with that said, the hard card pattern had a much tighter hit count in the center; where the other one was more even spaced over the 30 inch target. i think the hard cards would shoot tighter at longer distance targets .
scott