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The .303/22, sometimes known as the .22/303, is a wildcat centrefire rifle cartridge based on the .303 British, necked down to fire a .224 projectile, originating in Australia in the 1930s as a cartridge for sporterised rifles, particularly on the Lee–Enfield action. Similar versions also appeared in Canada around the same time. [3]
The .275 No 2 Magnum is a rimmed cartridge intended for use in double rifles. Rigby introduced the .275 No 2 Magnum by necking down the .375 Flanged Nitro Express, [2] it was still available in the early 1960s. [1] The .275 No 2 Magnum's performance is comparable to the .275 Rigby. [1]
Common rifle cartridges, from the largest .50 BMG to the smallest .22 Long Rifle with a $1 United States dollar bill in the background as a reference point. This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name. Data values are the highest found for the cartridge, and might not occur in the same load ...
[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]
ICL cartridges are wildcats based on conventional cases in use at the time. They feature a 45 degree shoulder [ 3 ] and the sides are straightened out compared to the parent cartridge. Most of the cartridges are considered improved cartridges since they simply create more powder space while maintaining the same caliber as the parent cartridge.
The Whisper family was developed as a line of accurate, multi-purpose cartridges using relatively heavy rifle bullets for a given caliber in subsonic loads. [1] [2] [3] The intention was to create an extremely accurate cartridge family for military, police, competition and specialized hunting markets that could also be easily sound suppressed.
All of the WSM cartridges are inspired on the .404 Jeffery non-belted magnum cartridge which is shortened to fit a short rifle action (such as a .308 Winchester). [1] It was developed by Rick Jamison in 1997-1998 as proven in a 2005 lawsuit Jamison vs. Olin Corporation-Winchester division. [2] Jamison was given 7 patents on the cartridge design.
The .35 Newton was a rimless centerfire cartridge introduced in 1915, two years after the .30 Newton, and the cartridges were produced by the Western Cartridge Company until 1936. [2] It is based on the .30 Newton case, necked up to .358 caliber. It was loaded with 250 grain hollow point bullet, with a muzzle velocity of about 2800 ft/s. [3]