I think the companies already had their grade structures established by the time Skeet came along. Remington did the same thing. They introduced their Model 31 Skeet Gun pump, Model 32 Skeet Gun over-under and their "Sportsman" Skeet Gun autoloader. These could also be had in their custom shop D "Tournament" Grade, E "Expert" Grade and F "Premier" Grade.

At Winchester it was the same thing. They had their Model 97 and 12 in Standard, Tournament, Trap and Pigeon Grades. But for the Model 21 they went with Standard, Tournament, Trap and Custom Built Grades.