.50 Remington Navy

• Name —.50 Remington Navy • Origin — United States • Type — Handgun • Production Date — 1865–1866 • Case Type — Rimmed, straight • Bullet —.510 • Neck —.535 • Shoulder —.535 • Base —.562 • Rim Dia —.642 • Case Length —.860 • Length — 1.28 • Primer — Rimfire • Max Pressure — 12,000–15,000 psi (82.74 to 103.42 MPa) • Bw1 — 290 • Vel1 — 600 • En1 — 234 • Balsrc — Barnes & Amber 1972 The.50 Remington Navy (13x21mmRF) is a.50 in American rimfire handgun cartridge.

Introduced for the Remington Navy single-shot, rolling block pistol in 1865, the low-velocity round loaded a 290 gr bullet over 23 gr of black powder. The rimfire version was replaced in 1866 by a centerfire equivalent. A Boxer-primed version remained commercially available until World War I. The power of the.50 Remington was less than average, but the heavy bullet, even at comparatively low velocity, made it "a rather potent handgun round".