You are probably correct Bill. O.R. was shooting USCC shells when he won the 1896 GAH
http://www.la84foundation.org/Sports.../SL2702020.pdf
"O. R. Dickey, of Boston. Mass., winner used a very handsome Parker Bros, hammerless gun,
of the pigeon model, and his load consisted of 50 grains, or about 3 1/2 drams by measure, of American "E. C." powder, 1 trap wad, one 3/8 inch pink felt, one 1/4-inch pink edge, and 1 1/8 ounce of No. 7 chilled shot in the United States Cartridge Co.'s "Rapid" shells, 2 3/4 inches in length."
Bill & Chris: where is his AHE?