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smokeless
Smokeless powder is a type of propellant used in firearms and artillery that produces lower amounts of smoke when fired, unlike the historical black powder it replaced. The term is unique to the United States and is generally not used in other English-speaking countries, which initially used proprietary names such as "Ballistite" and "Cordite" but gradually shifted to "propellant" as the generic term.
The basis of the term "smokeless" is that the combustion products are mainly gaseous, compared to around 55% solid products (mostly potassium carbonate, potassium sulfate, and potassium sulfide) for black powder. Despite its name, smokeless powder is not completely free of smoke; while there may be little noticeable smoke from small-arms ammunition, smoke from artillery fire can be substantial. This article focuses on nitrocellulose formulations, but the term smokeless powder was also used to describe various picrate mixtures with nitrate, chlorate, or dichromate oxidizers during the late 19th century, before the advantages of nitrocellulose became evident.Since the 14th century gunpowder was not actually a physical "powder", and smokeless powder can be produced only as a pelletized or extruded granular material. Smokeless powder allowed the development of modern semi- and fully automatic firearms and lighter breeches and barrels for artillery. Burnt gunpowder leaves a thick, heavy fouling that is hygroscopic and causes rusting of the barrel. The fouling left by smokeless powder exhibits none of these properties (though some primer compounds can leave hygroscopic salts that have a similar effect; non-corrosive primer compounds were introduced in the 1920s). This makes an autoloading firearm with many moving parts feasible (which would otherwise jam or seize under heavy black powder fouling).
Smokeless powders are classified as, typically, division 1.3 explosives under the UN Recommendations on the transportation of Dangerous goods – Model Regulations, regional regulations (such as ADR) and national regulations. However, they are used as solid propellants; in normal use, they undergo deflagration rather than detonation.
Reloading supplies. 4lb container of IMR Hi-Skor 700X smokeless powder, IMR PB smokeless powder 14oz, 4 boxes of 1000 each Winchester primers. WLP large pistol for standard or magnum pistol loads.
A friend recently mentioned that during the Obama regime smokeless powder was required to be manufactured with a shortened or set shelf life. That new powder does not last long periods of time. Can anyone shed light or (hopefully) debunk this rumor.
The powder is being sold as MP 540. It is a stick powder. I am trying to figure out if there is a canister grade powder that is an equivalent product so I can work up loads for other cartridges. The two load data recipes the seller is providing are:
Powder – MP 540
Caliber - .308
Charge – 45...
I have 3 extra 1LB cans of IMR-4350 powder that I would like to sell or to trade. The powder is fresh and I purchased it online from PowderValley few days ago. I am selling each can for $45. I would also trade for the following reloading supply: IMR-4064/Reloader17/Varget powders and/or Berger...
Hello. I have a good amount of powder to get rid of. I will frequently update the quantity, so if it is listed I likely have it. I am desparately selling what I have to try to get small pistol primers, so I am willing to trade for those as well. I am also Hazmat certified and can ship if you are...
I saw a chart once on the net that listed the working pressures of smokeless powders. It showed the pressure ranges that the various types of powder would burn efficiently and completely at. Shotguns powders were something like up to 18K and pistol powders were up to 30K and Rifles were about...
I finally got the chance to dive into my 2021 annual Hodgden manual. Inside I found a breif description of each powder available from Hodgden. As someone who is new to reloading this is important info as we maneuver the world of Smokeless powder and what works for what (the more I explore the...
Older but stabile and dry-stored powders.
HS-6 @ 42 oz total available: $100
Winchester 571 (aka: HS-7) @ 16 oz: $40
Winchester 748 @ 22oz : $50
Or buy them all for: $175
Prices offered based on BPI / Hogodon / Alliant online info, not trying to overcharge. These are older - but do smell...
2 lbs of Hodgdon H322 Rifle Powder. Sealed never opened
1 lb of Hodgdon H870 Rifle Powder. Sealed never opened
1 lb IMR 7828 SSC. Sealed never opened
$50 a pound or all 4 for $175 If you want it shipped there will be a $35 Hazmat fee plus shipping to be determined.
541-566-2752
Does anyone here have experience with smokeless muzzleloaders? I bought a Cva scout v2 single shot in 45-70, with the sole intention of sending it out to have the breech threaded to accept a plug that turns it into a smokeless powder muzzleloader. I sent the barrel out to Jeff at Hankins...
High-powered. High velocity. High performance. If you are reloading a magnum, IMR 4227 powder is the exactly what you are looking to add to your reloading bench. When hunting big game requires as high a velocity as possible without any dents in accuracy, and this powder is guaranteed to have the...