The "standard" 28-gauge shell in the U.S. at the time your gun was made was a 2 1/2 inch shell with a smokeless powder load of 1 3/4 drams equiv. and 5/8 ounce of shot. RST offers a wonderful reproduction of this load. The loading companies did offer, on special order, a 2 7/8 inch 28-gauge shell with a load of 2 drams equiv. and 5/8 ounce of shot. About 1931 or 32, Western Cartridge Co. intorduced their Super-X load in a 2 7/8 inch 28-gauge case carrying a max load of progressive burning smokeless powder and 3/4 ounce of shot. Shortly after WW-II the 28-gauge was standardized in a 2 3/4 inch case. The 7/8 and 1 ounce Magnum 28-gauge loads came along in the 1950s and 60s.
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Threaded Mode