410 bore, 24 and 28 gauges offered in 1913 24 gauge dropped 1928 all gauges except 12 dropped after 1941 name changed to Champion single Barrel in 1917.ĬHAMPION SINGLE BARREL-1923-1978 Single barrel rebounding center mounted hammer top lever operated break open design gauges: 12, 16, and 20 barrel length: 28, 30, and 32 inches (features barrel and lug forged in one piece) bored full chock only American black Walnut butt stock and fore-end automatic extractors weight 6¾ pounds overall length with 30 inch barrel 45 inches case hardened receiver (nickel available as option), browned barrel automatic ejectors extra cost option. the original finish was an oil finished stock, browned barrel and case hardened frame.ĬHAMPION MODEL 36-1909-1922 it seem that most of the 410 were used quite a bit and very few are in excellent condition. Iver johnson single barrel champion shotguns with a single letter suffix to the serial number were manufactured between 19.