.242 Rimless Nitro Express

The .242 Rimless Nitro Express, also known as the .242 Vickers and initially called the .242 Manton, was a rimless bottleneck centerfire rifle cartridge developed by Kynoch for J. Manton & Co of Calcutta and introduced in 1923.[1][2]

.242 Rimless Nitro Express
Type	Rifle
Place of origin	United Kingdom
Production history
Designer	Kynoch
Designed	1923
Produced	1923
Specifications
Case type	Rimless, bottleneck
Bullet diameter	.253 in (6.4 mm)
Neck diameter	.281 in (7.1 mm)
Shoulder diameter	.405 in (10.3 mm)
Base diameter	.465 in (11.8 mm)
Rim diameter	.465 in (11.8 mm)
Case length	2.38 in (60 mm)
Overall length	3.2 in (81 mm)
Primer type	.217/54
Ballistic performance
Bullet mass/type Velocity Energy 100 gr (6 g) 2,800 ft/s (850 m/s) 1,740 ft⋅lbf (2,360 J)
Source(s): Cartridges of the World.[1]

The .242 Rimless is very similar to the .243 Winchester in performance, although the cartridge is significantly longer. It fired a 100 gr projectile at 2800 fps.[1][2]

See also

• Nitro Express
• List of rifle cartridges
• 6mm rifle cartridges

References

1. Barnes, Frank C. (2000). M.L. McPherson (ed.). Cartridges of the World (9th ed.). Iola, WI: Krause Publications. p. 351. ISBN 978-0-87341-909-3.
2. "Kynoch: .242 Vickers Rimless Nitro Express". Imperial War Museums. 2020. Retrieved 5 August 2020.

External links

• ".242 Rimless Nitro Express (Vickers)", cartridgecollector.net, retrieved 12 February 2017.