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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 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]
Finnish smokeless powder. Smokeless powder is a type of propellant used in firearms and artillery that produces less smoke and less fouling when fired compared to black powder. Because of their similar use, both the original black powder formulation and the smokeless propellant which replaced it are commonly described as gunpowder.
The 8×58mmR Danish Krag, also known as the 8×58mmRD, is a late 19th-century rimmed centerfire military rifle cartridge similar to other early smokeless powder designs. It was briefly adopted by Norway and Sweden and remained the standard Danish service rifle cartridge from 1889 until 1945. [2] [1] [4]
H335 was surplus Olin WC844 [11] for full-charge loads in the .223 Remington and .308 Winchester. [14] H380 was Olin WC852 [11] for full-charge loads in the .30-06 Springfield. [14] H414 was introduced in 1967 [1] for full-charge loads in the .270 Winchester and .30-06 Springfield [14] H450 was for large capacity and magnum rifle cartridges. [14]
For small arms it has been replaced by other propellants, such as the Improved Military Rifle (IMR) line of extruded powder or the WC844 ball propellant currently in use in the 5.56×45mm NATO. [3] Production ceased in the United Kingdom around the end of the 20th century, with the closure of the last of the World War II cordite factories, ROF ...
Components of a modern bottleneck rifle cartridge. Top-to-bottom: Copper-jacketed bullet, smokeless powder granules, rimless brass case, Boxer primer.. Handloading, or reloading, is the practice of making firearm cartridges by manually assembling the individual components (metallic/polymer case, primer, propellant and projectile), rather than purchasing mass-assembled, factory-loaded ...