.369 Nitro Express

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.369 Nitro Express
Type Rifle
Place of origin  United Kingdom
Production history
Designer James Purdey & Sons
Designed 1922
Produced 1922
Case type Rimmed, bottleneck
Bullet diameter .375 in (9.5 mm)
Neck diameter .398 in (10.1 mm)
Shoulder diameter .475 in (12.1 mm)
Base diameter .543 in (13.8 mm)
Rim diameter .616 in (15.6 mm)
Case length 2.69 in (68 mm)
Overall length 3.6 in (91 mm)
Ballistic performance
Bullet mass/type Velocity Energy
270 gr (17 g) 2,525 ft/s (770 m/s) 3,815 ft⋅lbf (5,172 J)
Test barrel length: 31 in
Source(s): Kynoch[1] & Cartridges of the World.[2]

The .369 Nitro Express, also known as the .369 Purdey Nitro Express, is a centerfire, rifle cartridge developed by James Purdey & Sons and introduced in 1922.


The .369 Nitro Express is a rimmed cartridge originally designed for use in Purdey's own double rifles. The cartridge offers almost identical ballistic performance to the .375 H&H Flanged Magnum, firing a projectile of the same .375 in (9.5 mm) caliber.[2]

As is common with cartridges for double rifles, due to the need to regulate the two barrels to the same point of aim, the .369 Nitro Express was offered in one loading, firing a 270 gr (17 g) projectile at 2,525 ft/s (770 m/s).[1]

In his African Rifles and Cartridges, John "Pondoro" Taylor said of the .369 Nitro Express that you "would need to go a very long way to get a better general purpose weapon".[3]

See also[edit]



  1. ^ a b Kynoch.
  2. ^ a b Barnes.
  3. ^ Taylor.


External links[edit]