Mark - I know nothing about reloading, but do know the ol' boys used some boomers
Jan. 2 1897
http://www.la84foundation.org/Sports.../SL2815017.pdf
Charles Grimm defeats Doc Carver in Chicago for the “Cast Iron Metal”
Grimm used a 12-bore L.C. Smith gun, 7 3/4 pounds,
3 3/4 drams Schultze, 1 1/4 ounce No. 7 shot, in U.M.C. Trap shell.
Carver used a 12-bore Cashmore gun, 8 pounds weight,
4 drams of Carver powder, 1 1/4 No. 7 shot, in U.M.C. Trap shell.
More infro here
https://docs.google.com/document/pre...d_SQgaAfUOZEFU