Thales thales australia limited chemwatch hazard alert code. The term is unique to the united states and is generally not used in other englishspeaking countries, which initially used proprietary names such as ballistite and cordite but gradually shifted to. The nitrocellulose may be derived from purified cellulose, such as from cotton linters or wood, which is then nitrated by being treated with nitric and sulfuric acids olsen 1942. Numerous modern smokeless powders are double base in construction, containing both nitrocellulose and nitroglycerine. Both have their uses, though reloaders tend to have their personal favorite. Material accurate singlebase smokeless powders revision date. Immediately flush with large amounts of water for at least 15 minutes, occasionally lifting the upper and lower. Single base powders utilize nitrocellulose, double base powders use nitrocellulose and nitroglycerin and triple base powders use nitrocellulose, nitroglycerin and nitroguanidine. The common misconception with smokeless powder is that is explodes inside the cartridge. About smokeless powder the firearms forum the buying. Single and doublebase smokeless gun powders are very common is all small arms cartridges. Fbi the manufacture of smokeless powders and their. Read article retro waterfowlers delight by guns and ammo.
Same as double base except for a third energy component nitroguanidine is added for even more energy. With different characteristics and a ton of variables, gunpowder needs to be fully understood before you attempt to reload ammunition. This guide will take you through the basics of reloading powder. When burned, sulfur gives off white smoke, explaining why black powder gives off white smoke. Besides generating a lot less smoke, smokeless powder burns much cleaner and more efficiently than black powder, greatly reducing powder fouling and increasing the performance of the shotgun, handgun, and rifle cartridges in which it is used. What is the difference between black powder and modern. Adequate ventilation should be provided to keep dust concentrations below acceptable exposure limits. They are available for use by reloaders and factory produced ammunition. The primary energy source in singlebase powder is nitrocellulose. Im looking at a can of solo which has single base smokeless propellant and a picture of a shotgun shell under those words. The muzzle velocity of the early smokeless cordite filled. They are classified as singlebase, doublebase or triplebase powders. Salt peterbest or urea dont use potassium nitrate bcz it produces smoke 60% 2.
How to store reloading powders by vihtavuori store in. The chief ingredient of singlebase powder is nitrocellulose. Properties of smokeless powder alliant powder reloader. It simply isnt true that doublebase powders are faster burning than single base. Eleven nations are capable of producing these plastic explosives, and all or most have chosen 2,3dimethyl2,3dinitrobutane dmnb as their marking agent. I have single base powders such as sr4756, 3n37 and n340, which are. Hodgdons retumbo powder is also a singlebase extruded powder.
Powder left in the reloaders powder measure hoppers for extended periods, overnight or several days, should be avoided. Please visit the website and check out what the great folks who support us have to. Spherical smokeless powder is generally made from nitrocellulose as the base material. You may buy up to 48 lbs of smokeless powder in any packaging combination and a combined order with primers not to exceed 70 pounds. There was a brown or cocoa powder that appeared about the same time as smokeless powder 1880s that utilized only about 3% sulfur and was nearly as powerful as singlebase smokeless powders, but the latter immediately eclipsed it and today brown powder is unknown. Its a relatively fastburning powder that will also work for other arplatform cartridges like the 6. Morphology also lends clues to whether a powder is single or double base bender 1998. Black and smokeless powders are widely available for purchase throughout the united states in sporting stores and gun clubs. Characteristics and manufacture of spherical smokeless powders. Smokeless powder is the name given to a number of propellants used in firearms and artillery which produce negligible smoke when fired, unlike the older black powder which they replaced types of smokeless powder include cordite, ballistite and, historically, poudre b. In 1884, paul vieille invented a smokeless powder called poudre b short for poudre blanchewhite powder, as distinguished from black powder 7. Smokeless powders are available in spherical, cylindrical and flake form. Smokeless powder may be the most important component for any shooter who is reloading ammo and its probably the most complicated as well. Brands include accurate powder, alliant powder, hodgdon powder, imr powder, nobel sport powder, norma powder, shooters world powder, ramshot powder, vihtavuori powder and winchester powder.
Burn rate and ignition ease are dependent upon granule shape and coatings, not powder base. Smokeless powder does not explode when unconfined, unlike black powder. Singlebase powder definition is an explosive powder or propellant that contains nitrocellulose as the only essential component. Smokeless powder has nitroglycerin in its chemical composition, to varying degrees, and nitroglycerin has far more heat energy btus than sulfur, charcoal and saltpeter found in black powder. We have all of the major manufacturers in the quantities and types that you want and need. Modern smokeless powders are composed of one or more basic explosive compounds. Disc powders, ball powders, and aggregates are doublebase. Most tube and cylindrical powders are single base, with the exception of the hercules reloader a series. Powder stored at normal room temperatures take a long time to age, however at temperatures of 100 deg f or more, it doesnt take but a few weeks for deterioration to start. The energy released from doublebase smokeless powder is derived from both nitrocellulose and nitroglycerin. A combustible propellant that sits between the bullet and the primer in the case.
The shape by itself does not say anything about burn rate or chemical composition. On detonation, the ignited powder rapidly decomposes into a hot, forceful gas that instantaneously expands and propels the bullet out of the gun bore. Empty containers may contain residues of powder, and should be treated as hazardous waste. Use only nitrocellulose or a colloid or nc with alcohol or ether as a propellent, additives and stabilizers diphenylamine e.
Makes me think solo is a single base shotgun powder. Accurate 2015 is a fast burning, singlebase, extruded rifle powder that performs very well in small to medium varmint calibers 223 rem, 204 ruger. We have container sizes from 1 pound, 4 pounds and all the way up to 8 pounds. A basics video to show the difference between black powder and smokeless powder. Morphology also lends clues to whether a powder is single or doublebase bender 1998. Basic smokeless powder shapes and metering an essential characteristic that will change in powders is the shape of the grains.
Single base powders have a longer shelf life than double base powders ie unique and are less prone to aging from heat. Singlebase smokeless powders derive their main source of energy from nitrocellulose. The convention entered into force for the 38 ratifying nations on june 21, 1998. We are the largest distributor of all brands of smokeless powder because we offer great service and wholesale prices. Imr legendary powders single base powders safety data sheet march 2015 the following smokeless powders are distributed by. There are many interesting and important differences.
Smokeless powder is the name given to a number of propellants used in firearms and artillery that produce negligible smoke when fired, unlike. Smokeless gun powders are produced in two different forms. Smokeless and black powder, which prepared the report, was appointed in response to a mandate in the antiterrorism and effective death penalty act of 1996 to address the key issues of. Midsouth offers a huge selection of smokeless gun powder. In the manufacture of nitrocellulose, it is necessary to subject. Spherical powders are much easier to use in powder measures than long cylindrical powder shapes. The whys and whatfors of bullet propellants thegunmag. The stuff that we shooters know as smokeless powder was introduced as a black powder replacement in the 1880s.
Lebel cartridge the first smokeless military cartridge and. Imr legendary powders single base powders safety data sheet june 2017 the following smokeless powders are distributed by imr 8208 xbr 1. Propellants using nitrocellulose detonation velocity 7,300 ms 23,950 fts typically an etheralcohol colloid of nitrocellulose as the sole explosive propellant ingredient. At the time of this writing, winchesterolin and alliant exclusively produce double base powders, all vihtavuori and most imr powders are single base 700x and 800x are the double base imr powders that i know of, and accurate and hodgdon offer several powders of each type. Powder needs to be stored in original containers only, when not in use. See section below for composition of mixtures mixtures cas no %weight name 9004700 85. Wpi a21 material accurate doublebase smokeless powders revision date. Our selection and pricing of hodgdon powder makes us the reloading source for powder. Calcium carbonate 25% mix them all and you got smokeless powder, just. There are lots of categories of smokeless powders, which depend on their properties, such as composition, speed of combustion, etc. Accurate solo, accurate lt30, accurate lt32, accurate 2015, accurate 2495, accurate 4064, accurate 4350.
Smokeless powder consists of nitocellulose singlebase powders, frequently combined with up to 50 percent nitroglycerin doublebase powders, and sometimes nitroglycerin and nitroguanidine triplebase, corned into small spherical balls or extrudedinto cylinders or flakes using solvents such as ether. Powder composition modern smokeless powders are composed of one or more basic explosive compounds. Propellants mixtures containing nitrocellulose and nitroglycerin detonation velocity 7,700 ms 25,260 fts as explosive. Singlebase powder definition of singlebase powder by. Smokeless powder is the name given to a number of propellants used in firearms and artillery that produce negligible smoke when fired, unlike the gunpowder or black powder they replaced. Unlike black powder, poudre b also burns when wet and produces about three times the force for the same volume. The same as single base powder, except an additional energy source nitroglycerine added during the chemical compounding stages of manufacture. Burn rate is unrelated to whether a powder is sb or db. Dupont continued to manufacture single base improved military rifle imr powders while hercules powder company assumed control of the double base smokeless powders and atlas powder company assumed control of the blasting explosives formerly. The shape is on a tiny level that you can only see with a microscope, but it makes a major impact on how a powder will deliver energy to the bullet. There are singlebase and doublebase powders throughout the burn rate spectrum. The energy released from doublebase smokeless powders is derived from both nitrocellulose and nitroglycerin. Single base powders are essentially only nitrocellulose while double base powders add in nitroglycerin, increasing the energy it produces. Disc powders, ball powders, and aggregates are double base.
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