I ordered 20 ga. sabots from balisticspecialties as well as the 410 round ball slugs. I called them and they are sending me data for the sabots, the 410 and the Lyman slugs. They have some Lyman slugs in stock even though they are discontinued, I thought I would try them before ordering the mold. I will report on how it all works out, as soon as the little league season is over. Shotgunner