Yes, we absolutely still use gunpowder today, though not usually in the form most people picture. The original black powder, a mixture of charcoal, sulfur, and potassium nitrate, has been almost entirely replaced in firearms by modern “smokeless” propellants based on nitrocellulose. But traditional black powder itself remains essential in fireworks, muzzleloader hunting, historical reenactments, and certain specialty applications. Between the old formula and its modern descendants, gunpowder-based propellants are more widely used now than at any point in history.
How Modern Propellants Differ From Black Powder
What people call “gunpowder” today comes in two broad families. Traditional black powder is the centuries-old mix of charcoal, sulfur, and potassium nitrate (saltpeter). It burns fast, produces a thick cloud of white smoke, and leaves behind a corrosive residue. Every firearm on Earth used it until the late 1800s.
Modern smokeless powder replaced it for nearly all firearms applications. Instead of charcoal and sulfur, smokeless powder uses nitrocellulose as its primary energetic ingredient. It burns cleaner, produces far less visible smoke, and generates significantly more propulsive force per gram. That efficiency is why it took over: you can fire more rounds, with more velocity, and spend less time scrubbing residue from the barrel afterward.
Smokeless powders come in three main types. Single-base propellants use nitrocellulose alone. Double-base versions add nitroglycerin, which increases energy output but also raises barrel temperatures and can shorten a weapon’s service life. Triple-base propellants add a third compound, nitroguanidine, to boost performance while keeping temperatures more manageable. Every modern handgun, rifle, shotgun, and piece of military artillery uses some variation of these smokeless formulations.
Military Use Today
Black powder was completely displaced from military service generations ago. As a U.S. Army engineering handbook on ammunition design puts it plainly, black powder “has been completely displaced by propellant compositions… which invariably contain nitrocellulose.” Every round fired by a modern military, from pistol cartridges to tank shells to naval guns, uses smokeless propellant.
The specific formulation varies by weapon system. Small arms often use ball powder, a manufacturing process that produces small spherical grains for consistent burn rates. Larger weapons like mortars and artillery use propellants shaped into larger grains, sticks, or perforated cylinders to control how quickly they burn inside much bigger chambers. The U.S. military maintains dozens of standardized propellant formulations, each tuned to a specific weapon’s pressure and velocity requirements.
Where Black Powder Still Dominates
Fireworks are the biggest remaining market for traditional black powder. In aerial shells, black powder serves two critical roles: the lift charge that launches the shell skyward and, in some cases, the burst charge that breaks it open at altitude. The lift charges in professional aerial shells are reliably composed of standard black powder in coarse granulations. A 6-inch shell, for example, uses a charge of 2Fg (medium-coarse) black powder to reach the correct altitude. The burst charges in consumer-grade fireworks often use modified compositions rather than commercially produced black powder, but the lift charge remains the real thing.
Muzzleloader hunting is another major use. Many U.S. states have dedicated muzzleloader hunting seasons that require firearms loaded from the front of the barrel, just as they were in the 18th century. These guns run on black powder or approved substitutes like Pyrodex, a product designed to be measured and loaded in the same quantities as black powder but with somewhat different ignition characteristics. Black powder comes in four granulation sizes for these firearms: coarse (Fg) for large-bore rifles and cannons, medium (FFg) for standard rifles and shotguns, fine (FFFg) for smaller-caliber pistols and rifles, and extra-fine (FFFFg) used as priming powder in flintlock mechanisms. Substitutes like Pyrodex work well in percussion-cap guns but are generally not recommended for flintlocks because they don’t ignite as reliably from a spark.
Historical reenactments, Civil War commemorations, and competitive black powder shooting keep demand steady as well. Cannons fired at ceremonies and sporting events also typically use black powder charges.
Civilian Firearms and Smokeless Powder
Every modern civilian firearm, from a compact handgun to a semi-automatic rifle to a pump-action shotgun, fires ammunition loaded with smokeless powder. When you buy a box of cartridges at a sporting goods store, the propellant inside each round is a smokeless formulation. Reloaders who assemble their own ammunition purchase canisters of smokeless powder in specific burn rates matched to their caliber and bullet weight.
One critical safety point: smokeless powder and black powder are not interchangeable. Loading smokeless powder into a firearm designed for black powder can produce pressures far beyond what the gun can handle, with potentially catastrophic results. The two types of propellant operate at fundamentally different pressure levels.
Storage and Regulation
Black powder is classified and regulated differently from smokeless powder because it’s significantly more sensitive to ignition. The Bureau of Alcohol, Tobacco, Firearms and Explosives classifies black powder as a low explosive. It must be stored in approved magazine types, cannot be kept in any residence or dwelling in magazine form, and is limited to 50 pounds in any single building for indoor storage. These rules, updated as recently as January 2026, reflect the fact that black powder can be set off by a spark, static electricity, or friction in ways that smokeless powder generally cannot.
Smokeless powder, by contrast, is classified as a propellant rather than an explosive for storage purposes. It burns progressively rather than detonating, making it far less hazardous in storage. Most states allow individuals to keep reasonable quantities of smokeless powder at home for reloading ammunition without special permits.
Health and Environmental Concerns
Modern ammunition leaves behind more than just propellant residue. The primers that ignite the powder charge in each cartridge traditionally contain lead styphnate and barium nitrate, both heavy metals. These residues persist on skin for up to nine hours after firing and are extremely difficult to wash off. On surfaces, they can maintain detectable characteristics for over two years.
This is driving a shift in the ammunition industry toward lead-free and heavy-metal-free primer formulations. Indoor shooting ranges, where lead exposure is concentrated, have been a particular focus. The propellant itself produces less concerning residue than the primers do, but the overall chemical footprint of firing a modern cartridge is an active area of regulatory attention.
Black powder’s environmental profile is different. Its residue is mainly potassium salts and sulfur compounds, which wash away more easily but contribute to air quality issues at large fireworks displays. The dense smoke that makes black powder impractical for military use is also a localized pollution concern in communities that host major pyrotechnic events.