20 Gauge 3 Inch Magnum

1925 · 10 firearms in catalog

Also known as: 20 ga 3", 20 ga Magnum, 20 bore 76mm

Cartridge specifications

Bullet Diameter15.6 mm (0.614")
Base Diameter17.4 mm (0.685")
Case Length76 mm (2.992")
Overall Length82 mm (3.228")
Max Pressure83 MPa (12,000 psi)
Primer TypeShotshell
Cartridge TypeRimmed
Introduced1925

Firearms chambered in 20 Gauge 3 Inch Magnum

Cartridge family

Parent cartridge: 20 Gauge