HomelessjOe: The concept with the second wad is the same as Pionered By Frances Sell in his writings in the late 1950s. Frances Sell found that if he cut donut holes in the under shot wad, in 20 Ga 3" hand loads with 1 1/4 oz of shot he could get close to 100% patterns. This was pre plastic wad era. He claimed that the shot charge worked like A boat tail bullet. Yeah it worked better in 10 and 12 gauges than it did in his twenty ga. Many long range pass shooters have loaded shells in this mannor for the last half-century. I think it might work with Black powder and card wads, but have never attempted it.
I have used this Idea with 105 Mec. and BPD 10 plastic wads with the 20 ga. shot cup in the bottom of the 10 ga. wad. I always add buffer, and results from Tom Roster is that velocity and presures are a little high. Patterns are very tight. I shoot these loads in NID Ithacas and Neuman 10s. Never shoot more than 1 3/4oz of lead shot.
Last year I loaded some 1 3/8 oz lead shot, Rem. primer, 30 gr. 7625 in Federal 2 7/8 in, case with the double wad, no buffer. Shot these shells in an NH Parker with .039 choke they shot very well, I did not send to Tom R. for results though. So I can not tell you if it will raise the presaure in your gun.
You might try #3 shot it worked For Elmer Keith, it works for me and it might just work for you. It is smaller than #2 shot and allmost as good for penetration.
David Lien
