Have been playing with the lyman Sabot slugs off and on for about three years now not with much success. Have poured with pure PB and WW. The harder lead seems to group better. Been shooting a Moss. 500 slugger and an H and R ultra slugger. Tried AA hulls, rem premier hulls, and tried the Multi Hulls. Used Herco and blueDot powders. Used various types of win wads and the fed wads. All with same result. the wad peddles folding back into the void in the middle of the slug. No real group just random hols all over a sheet of copy paper at 50 yards. Me getting P.O..ed and going out a buying lightfield slugs that group like dream out of the ultra slugger. Came across Navy Guns post from 2009 and he mentioned using the 3 inch hulls and filling the shirt with hot glue to keep it from crushing and keeping the round square down the barrel. Havent tried the 3inch hulls yet but it would make since. A longer C.O.L. in a rifle tends to make the round more accurate since it has a shorter unsupported distance to travel before it engages the rifling. Guess it would hold true in a slugger also. Wish some company would sell a two part flight discarding sabot for it like the lightfields have then would.t have to worry about the wads and could roll crimp them and be done with it. Getting ready to put the Lyman reloading manual back on the book shelf and leaving it there.