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The .41 Remington Magnum, also known as .41 Magnum or 10.4×33mmR (as it is known in unofficial metric designation), is a center fire firearms cartridge primarily developed for use in large-frame revolvers, introduced in 1964 by the Remington Arms Company, intended for hunting and law enforcement purposes.
The C was to indicate the powder burned "cooler" than traditional Improved Military Rifle (IMR) powders. [4] In 1949, he began acquisition of powder salvaged from disassembled Oerlikon 20mm cannon cartridges. This powder resembled IMR 4350 in appearance, and with a slower burning rate, was initially marketed as "4350 Data", and later as 4831. [5]
An IMR smokeless powder for reloading The Hagley Museum in Wilmington, Delaware. IMR Legendary Powders is a line of smokeless powders which are popularly used in sporting and military/police firearm cartridges. The initials 'IMR' stand for Improved Military Rifle powder. IMR powders makes a line of various types of smokeless powder suitable for ...
By 1936 improved DuPont process control produced batches conforming to published reloading data rather than requiring different charge specifications for each batch; [11] and those propellants have remained in production. Non-conforming batches were used to load commercial and military cartridges following traditional testing procedures.
The .401 SL is of similar size to the later .41 Remington Magnum; but the longer self-loading rifle cartridge produced a muzzle energy of 2,000 foot-pounds force (2,700 J) with a 200-grain (13 g) bullet, [4] while the magnum revolver is credited with a muzzle energy of 790 foot-pounds force (1,070 J) with a 210-grain (14 g) bullet. [5]
The final improvement came with the increased thickness of the cartridge case wall from the web area up to the beginning of the shoulder. This created a cartridge case stronger than the .45 Winchester Magnum cartridge case. The .40 Super cartridge case was designed for a balance of strength and powder capacity.
The concept of a .41 Special was later brought up by gunwriter Elmer Keith in his 1955 work Sixguns, where he proposed the .41 special as an analog to the .44 Special cartridge, but the idea did not gain ground. [3] Keith and Bill Jordan later proposed the .41 Magnum cartridge, which was formally adopted by Remington Arms in 1964. Thus counter ...
Source(s): Hodgdon Online reloading data The .38 Short Colt , also known as .38 SC , is a heeled bullet cartridge intended for metallic cartridge conversions of the cap and ball Colt 1851 Navy Revolver from the American Civil War era.