terc, I use card and fiber wads in only one gun and that is a #2 AyA choked IMP CYL and Mod. and because my first brass shells were Double Hammer, I could not use 1-piece plastic wads because of their inside diameter. After getting RMC brass hulls, I tried to use 1-piece plastic wads and the patterns were noticeably inferior to The loads in the DH hulls. I loaded the RMC hulls with the same as the DH loads and to my surprise the patterns were consistently outstanding. I load 12, 20 and 28 gauge brass hulls with 1-piece plastic wads and get great patterns, so I have not tried card and fiber wads in the other gauges.
