October 19, 1895 Sporting Life
http://library.la84.org/SportsLibrar.../SL2604014.pdf
Dr. Williamson, of Milwaukee, Wis., has just purchased a new gun of more than ordinary proportions. The Doctor was quite taken with Carver's Cashmore gun, having long barrels and shooting a big load in a 3 1/4 inch shell; but desiring to give the American gunmakers a chance he ordered a gun from the Lefever Arms Company, of Syracuse, N. Y. but at the same time rather doubted their ability to make such a weapon as he desired. However, the gun was furnished and Dr. Williamson killed 79 out of 80 live birds on one trial, and 74 out of 75 targets, part being doubles.
The gun is a Lefever, 12-gauge, weighing 8 1/4 pounds, 32-inch barrels, and chambered for a 3 1/4 inch shell, and guaranteed to stand
4 1/2 Drams of “E.C.” powder, which is the amount of powder which he uses.
(1 1/4 oz. with 3 3/4 Dram “Schultze” was about 14,000 psi. “Schultze” pressures were somewhat lower than “E.C.”)
Another criteria might be a longer than standard chamber
At the 1895 Grand Smokeless Championship Handicap Live-bird Tournament, Capt. John L. Brewer used a Greener. His shells were the U.M.C. Trap, 3 1/4 inches long, 4 Drams of DuPont (Bulk) powder by measure; one trap wad, two pink felts, 1/4 inch 11-gauge wad and one ordinary 12-gauge pink edge wad over the powder and 1 1/4 ounces of No. 7 chilled shot; the shell had a very hard square crimp.
