[LtCol Henderson Marriott]

These observations from historical experience have achieved the desired result: Parker, AH Fox, and LC Smith adapted their shotguns to the new progressive powders first seen in the 1923-25 work of John Olin. The plain unmarked boxes of 3 inch #4 shot shells first delivered to T. Nash Buckingham sparked a continued interest in long range wildfowl shotgunning that still exists today. Mr. Buck preferred copper plated #4s.

Shot columns of the 1920s and progressive powders have given way to plastic cups and power pistons.
The heavier-than-lead non-toxic shot shells have the potential to extend maximum effective range-if not measured range-
even further, particularly for duck, goose and turkey hunting. It remains to be seen how
the newer non-toxics with shot column modifications perform in individual shotguns by Parker, AH Fox and LC Smith. Certainly any extended testing will get pricey considering the current cost of even a few boxes of Bismuth-HEVISHOT and others heavier -than-lead now on the market.