NAME – 18.5X79mm AAI CAWS Flechette

TYPE – Rimless shotshell

YEAR OF INTRODUCTION – 1982

COUNTRY OF ORIGIN – USA

CASE TYPE – Rimless Straight Plastic

CARTRIDGE LENGTH – 78.45 mm (3.088 in)

CASING LENGTH – 78.45 mm (3.088 in)

CASE HEAD DIAMETER – 22.89 mm (0.901 in)

CASE RIM DIAMETER – 22.93 mm (0.903 in)

LOAD – Drag-stabilized flechettes

LOAD WEIGHT – 17.2 g (266 grains)

FLECHETTE DIAMETER – 2.65 mm (0.104 in)

NUMBER OF FLECHETTES – 8

FLECHETTE WEIGHT – Inner flechette – 2.72 g (42 grains)

FLECHETTE WEIGHT – Outer flechettes – 2.07 g (32 grains)

FLECHETTE WEIGHT (BODY) – 1.75 g (27 grains)

CASING WEIGHT – 20.7 g (320 grains)

TOTAL ROUND WEIGHT – 40.4 g (623 grains)

MUZZLE VELOCITY – 547 m/s (1794 fps)

NOMINAL BARREL LENGTH – 40.6 cm (16 in)

MUZZLE ENERGY – 2578 j (1901 ft/lb)

MUZZLE ENERGY PER INNER FLECHETTE – 407 j (300 ft/lb)

MUZZLE ENERGY PER OUTER FLECHETTE – 310 j (229 ft/lb)

    Payload is made up of 7 4.1 cm long (1.62 in) drag-stabilized flechettes with plastic drag cones surrounding a central, slightly larger, drag-stabilized flechette