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NAME – 18.5x70mmR (12 Gauge 2 ¾ inch) 00 Buckshot
TYPE – Shotgun shell
YEAR OF INTRODUCTION – 1862 [1877]
COUNTRY OF ORIGIN – Europe [USA]
CASE TYPE – Rimmed straight
CARTRIDGE LENGTH – 6.2 cm (2.440 in)
CASING LENGTH – 7 cm (2.76 in)
CASE HEAD DIAMETER – 18.9 mm (0.744 in)
CASE RIM DIAMETER – 20.8 mm (0.819 in)
LOAD – 00 Lead Buckshot
LOAD WEIGHT – 34.2 g (522 grains)
PELLET DIAMETER – 8.6 mm (0.34 in)
NUMBER OF PELLETS – 9
WEIGHT OF PELLET – 3.8 g (58 grains)
TOTAL ROUND WEIGHT – 51.84 g (1.83 oz) [Paper case]
TOTAL ROUND WEIGHT – 46.4 g (1.64 oz) [Plastic case]
MUZZLE VELOCITY – 404 m/s (1325 fps)
NOMINAL BARREL LENGTH – 76.2 cm (30 in)
MUZZLE ENERGY – 2759 j (2035 ft/lb)
MUZZLE ENERGY PER PELLET – 307 j (226 ft/lb)
15 fps/in per 2 inchs bbl length from nominal
These specifications are for the paper-cased, smokeless powder buckshot load of the 20th Century
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