.600 Nitro Express

.600 Nitro Express
TypeRifle
Place of originUnited Kingdom
Service history
In service1915–1916
Used byBritish Army
WarsWorld War I
Production history
DesignerW. J. Jeffery & Co.
Designed1899
Produced1900–present
Specifications
Case typeRimmed, tapered
Bullet diameter.620 in (15.7 mm)
Land diameter.606 in (15.4 mm)
Neck diameter.648 in (16.5 mm)
Base diameter.700 in (17.8 mm)
Rim diameter.810 in (20.6 mm)
Rim thickness.065 in (1.7 mm)
Case length3 in (76 mm)
Overall length3.70 in (94 mm)
Case capacity211.4 gr H2O (13.70 cm3)
Primer typeKynoch No. 40
Ballistic performance
Bullet mass/type Velocity Energy
900 gr (58 g) 2,050 ft/s (620 m/s) 8,400 ft⋅lbf (11,400 J)
900 gr (58 g) 1,950 ft/s (590 m/s) 7,600 ft⋅lbf (10,300 J)
900 gr (58 g) 1,850 ft/s (560 m/s) 6,840 ft⋅lbf (9,270 J)
Test barrel length: 28
Source(s): Barnes, Kynoch and C.I.P Data

The .600 Nitro Express (15.7×76mmR) is a large bore Nitro Express rifle cartridge developed by W. J. Jeffery & Co. for the purpose of hunting large game.

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