5.6mm Flechette (SPIW)

1962 · Irwin Barr · 1 firearm in catalog

Also known as: 5.6mm flechette, XM144 flechette, Dardick tround flechette, .22 flechette

Cartridge specifications

Bullet Diameter1.8 mm (0.071")
Base Diameter5.6 mm (0.220")
Typical Bullet Weight0.65 g (10 gr)
Typical Muzzle Velocity1350 m/s (4429 fps)
Typical Muzzle Energy592 J (437 ft·lbf)
Introduced1962

Firearms chambered in 5.6mm Flechette (SPIW)