Search results
Results from the WOW.Com Content Network
Although all firearm propellants are generally called powder, [1] the term gunpowder originally described mixtures of charcoal and sulfur with potassium nitrate as an oxidizing agent. [ 2 ] : 133, 137 By the 20th century these early propellants were largely replaced by smokeless powder of nitrocellulose or similarly nitrated organic compounds .
Using Rock Island Armory M1911 pistols with 5-inch barrels, Taffin conducted tests at 20 yards with four-shot groups. The best results were achieved with Hodgdon Lil' Gun powder (10.5 grains) and Alliant 2400 powder (9.3 grains), both of which are fast-burning pistol powders designed for magnum and high-velocity applications.
For all major practical shooting competitions, claimed power factors are checked by firing the competitor's gun and ammunition through a chronograph. The most common practice is for a competitor to provide a certain number of rounds to the Range/ Safety Officers at the beginning of the match day.
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 ...
The combustion products of smokeless powder are mainly gaseous, compared to around 55% solid products (mostly potassium carbonate, potassium sulfate, and potassium sulfide) for black powder. [1] In addition, smokeless powder does not leave the thick, heavy fouling of hygroscopic material associated with black powder that causes rusting of the ...
Pyrodex has a slower combustion and produces a lower maximum pressure than black powder yet provides the same amount of work and a higher projectile velocity. [8] [9] It is often used for shooting historical weapons. [8] Originally available as loose powder in two granularities, RS (Rifle/Shotgun) and P (Pistol). Where RS (Rifle/Shotgun) is ...
Surplus Vulcan cannon spherical powder was distributed as H870 beginning in 1959. [9] All of the surplus BL type C had been sold by 1961. Olin Corporation had manufactured the powder as 846, and continued production for loading 7.62×51mm NATO cartridges. [4] Hodgdon began marketing post-war production as spherical BL-C lot no. 2, or BL-C(2).
A cartridge, [1] [2] also known as a round, is a type of pre-assembled firearm ammunition packaging a projectile (bullet, shot, or slug), a propellant substance (smokeless powder, black powder substitute, or black powder) and an ignition device within a metallic, paper, or plastic case that is precisely made to fit within the barrel chamber of ...