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Number 4831 was used to load navy anti-aircraft machine gun ammunition, and number 4895 was used to load United States service rifle ammunition. As these propellants became military surplus after the war, large quantities of different batches were blended together to make products with uniform average performance for sale to civilians.
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 ...
Loads are available with reduced velocity and pressure as well as increased velocity and pressure for stronger firearms. The .30-06 remains one of the most popular sporting cartridges in the world. Many hunting loads have over 3,000 foot-pounds (4,100 J) of energy at the muzzle and use expanding bullets that can deliver rapid energy transfer to ...
The M25 is an orange-tipped 30-06 Springfield tracer cartridge consisting of a 145 gr bullet with 50 grains of IMR 4895 powder. The tracer compound contains composition R 321 which is 16% polyvinyl chloride, 26% magnesium powder, and 52% strontium nitrate.
The U.S. Navy also contracted with Remington to produce several thousand rolling-block carbines chambered for a reduced load version which was officially produced for use only in carbines, using a shortened .50-70 with a 430-grain (28 g) bullet and 45 grains (2.9 g) of black powder.
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.
Recently Weatherby has offered some reduced loads in the 7,500 ft⋅lbf (10,200 J) range, in order to be more forgiving to shooters. [47] The recoil of the full-power loads is very punishing and if the gun has a scope, scope cuts on the forehead are common. [48] A factory powder charge for this cartridge is about 115 grains (7.5 g).