.333 Jeffery
Encyclopedia
The .333 Jeffery also known as the .333 Jeffery Rimless Nitro Express or as the .333 Rimless Nitro Express is a rimless bottlenecked cartridge. It was developed by the W.J. Jeffery & Co in 1908 as a counterpart to the .333 Jeffery Flanged
and was intended for use in magazine rifles.
and India
where it gained a following. While the cartridge is not intended for dangerous game, the cartridge was successfully used against these game species due to the excellent sectional density of the 300 gr bullet. The penetrative capability of this bullet was a reason for its use as a counter sniper rifle cartridge between 1914 and 1918 as it could penetrate the German sniper shields before reaching the snipers.
The .333 Jeffery was originally loaded with cordite. It is loaded to a slightly higher pressure and performance level than its rimmed counterpart. The .333 OKH cartridge and the .318 Westley Richards cartridges provide similar performance levels as the .333 Jeffery.
Kynoch offers the loaded ammunition for the cartridge. They offer a 250 gr bullet at 2400 ft/s (731.5 m/s) and a 300 gr bullet at 2150 ft/s (655.3 m/s). Brass of new manufacture can be obtained from Bertram Brass of Australia and Kynoch.
.333 Jeffery Flanged
The .333 Jeffery Flanged or .333 Flanged Nitro Express is a .333 caliber rimmed, bottlenecked rifle cartridge. It was developed by the W.J. Jeffery & Co. in 1908 as a rimmed version of the .333 Jeffery and is intended for double rifles....
and was intended for use in magazine rifles.
General information
The .333 Jeffery was designed for hunting medium game in AfricaAfrica
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
and India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
where it gained a following. While the cartridge is not intended for dangerous game, the cartridge was successfully used against these game species due to the excellent sectional density of the 300 gr bullet. The penetrative capability of this bullet was a reason for its use as a counter sniper rifle cartridge between 1914 and 1918 as it could penetrate the German sniper shields before reaching the snipers.
The .333 Jeffery was originally loaded with cordite. It is loaded to a slightly higher pressure and performance level than its rimmed counterpart. The .333 OKH cartridge and the .318 Westley Richards cartridges provide similar performance levels as the .333 Jeffery.
Kynoch offers the loaded ammunition for the cartridge. They offer a 250 gr bullet at 2400 ft/s (731.5 m/s) and a 300 gr bullet at 2150 ft/s (655.3 m/s). Brass of new manufacture can be obtained from Bertram Brass of Australia and Kynoch.