NAME – 19.7x89mmR (10 gauge 3 ½ inch Magnum) #4 Lead Shot

TYPE – Shotshell

YEAR OF INTRODUCTION – 1932

COUNTRY OF ORIGIN – USA

CASE TYPE – Rimmed straight

CARTRIDGE LENGTH – 84.6 mm (3.325 in)

CASING LENGTH – 85.7 mm (3.375 in)

CASE HEAD DIAMETER – 21.77 mm (0.857 in)

CASE RIM DIAMETER – 23.37 mm (0.920 in)

LOAD – #4 Lead shot

LOAD WEIGHT – 56.7 g (2 oz – 875 grains)

PELLET DIAMETER – 3.30 mm (0.130 in)

NUMBER OF PELLETS – 260

PELLET WEIGHT –0.22 g (3.4 grains)

CASING WEIGHT – 11.6 g (179 grains)

TOTAL ROUND WEIGHT – 85.3 g (3.01 oz)

MUZZLE VELOCITY – 366 m/s (1200 fps)

NOMINAL BARREL LENGTH – 76.2 cm (30 in)

MUZZLE ENERGY – 3794 j (2798 ft/lb)

MUZZLE ENERGY PER PELLET – 14.6 j (10.8 ft/lb)