.405 Winchester

.405 Winchester Center Fire
TypeRifle
Place of originUnited States
Production history
DesignerWinchester Repeating Arms Company
Designed1904[1]
Produced1904–present
Variants.277 Elliott Express
.357 Elliott Express
Specifications
Case typeRimmed, straight
Bullet diameter0.4115 in (10.45 mm)
Neck diameter0.436 in (11.1 mm)
Base diameter0.461 in (11.7 mm)
Rim diameter0.543 in (13.8 mm)
Case length2.583 in (65.6 mm)
Overall length3.175 in (80.6 mm)
Rifling twist1 turn in 14"
Primer typelarge rifle
Maximum pressure (CIP)35,500 psi (245 MPa)
Maximum pressure (SAAMI)46,000 psi (320 MPa)
Maximum CUP36,000 CUP
Ballistic performance
Bullet mass/type Velocity Energy
300 gr (19 g) 2,204 ft/s (672 m/s) 3,236 ft⋅lbf (4,387 J)
400 gr (26 g) 1,900 ft/s (580 m/s) 3,207 ft⋅lbf (4,348 J)
Source(s): The American Rifle[2] Woodleigh Bullets Loading Manual[3]

The .405 Winchester / 10.45x65mmR (.405 WCF) is a rimmed centerfire rifle cartridge introduced in 1904 for the Winchester 1895 lever-action rifle.[4] It remains to this day one of the most powerful rimmed cartridges designed specifically for lever-action rifles; the only modern lever action cartridges that exceed its performance are the .50 Alaskan, .450 Alaskan, .475 Turnbull, .348 Turnbull, and the .450 Marlin. The .405 was highly regarded by U.S. President Theodore Roosevelt during his safari in East Africa.[5]

  1. ^ Hoover, J. "T. (2021, November 9). Northern Precision's .405 Winchester Slugs. GUNS Magazine. Retrieved May 3, 2023, from https://gunsmagazine.com/ammo/northern-precisions-405-winchester-slugs/
  2. ^ Whelen, Townsend. The American Rifle. The Century Co.: 1918, p. 275.
  3. ^ Woodleigh Bullets Loading Manual. 2014. p. 207.
  4. ^ Cartridges Of The World, Frank Barnes, Krause Publications
  5. ^ Roosevelt, Theodore. "Trekking Through the Thirst to the Sotik." African Game Trails. New York: Charles Schribner's Sons, 1910. 166-67. Print.