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7x57

 

 

7×57mm
Ammunition 7x57.jpg
Two 7×57mm cartridges next to a 7.5×55mm/GP11 (mid), .308 Win and .223 Rem (far right)
Type Rifle
Place of origin  German Empire
Service history
Used by Spain
Dominican Republic
Colombia
Mexico
Brazil
Chile
Kingdom of Serbia
Venezuela
Boers
Wars First Rif War
Spanish–American War
Second Boer War
Macedonian Struggle
Balkan Wars
First World War
Spanish Civil War
other conflicts
Production history
Designer Paul Mauser
Designed 1892
Variants 7×57mmR (rimmed)
Specifications
Parent case none
Case type Rimless, bottleneck
Bullet diameter 7.24 mm (0.285 in)
Neck diameter 8.25 mm (0.325 in)
Shoulder diameter 10.92 mm (0.430 in)
Base diameter 12.01 mm (0.473 in)
Rim diameter 12.10 mm (0.476 in)
Rim thickness 1.15 mm (0.045 in)
Case length 57.00 mm (2.244 in)
Overall length 78.00 mm (3.071 in)
Case capacity 3.90 cm3 (60.2 gr H2O)
Rifling twist 220 mm (1 in 8.66 in)
Primer type Large rifle
Maximum pressure (C.I.P.) 390.00 MPa (56,565 psi)
Maximum pressure (SAAMI) 351.63 MPa (51,000 psi)
Ballistic performance
Bullet mass/typeVelocityEnergy
9.0 g (139 gr) RWS KS 900 m/s (3,000 ft/s) 3,240 J (2,390 ft·lbf)
10.5 g (162 gr) RWS ID Classic 800 m/s (2,600 ft/s) 3,360 J (2,480 ft·lbf)
11.2 g (173 gr) RWS HMK 770 m/s (2,500 ft/s) 3,320 J (2,450 ft·lbf)
11.2 g (173 gr) Factory Military 700 m/s (2,300 ft/s) 2,746 J (2,025 ft·lbf)
Source(s): RWS / RUAG Ammotech[
Image Module
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