A muzzleloader is any firearm into which the projectile and usually the propellant charge is loaded from the muzzle of the gun (i.e., from the forward, open end of the gun's barrel). This is distinct from the more popular modern (higher tech and harder to make) designs of breech-loading firearms. The term "muzzleloader" may also apply to the marksman who specializes in the shooting of muzzleloading firearms. The term of art includes rifled muzzleloaders and smoothbore muzzleloaders. The firing methods, paraphernalia and mechanism further divide both categories as do caliber (from cannons to small-caliber palm guns).
Modern muzzleloading firearms range from reproductions of sidelock, flintlock and percussion long guns, to in-line rifles that use modern inventions such as a closed breech, sealed primer and fast rifling to allow for considerable accuracy at long ranges.
Modern mortars use a shell with the propelling charge and primer attached at the base. Unlike older muzzleloading mortars, which were loaded the same way as muzzleloading cannon, the modern mortar is fired by dropping the shell down the barrel where a pin fires the primer, igniting the main propelling charge. Both the modern mortar and the older mortar were used for high angle fire. However, the fact that the mortar is not loaded in separate steps may make its definition as a muzzleloader a matter of opinion.
Muzzleloading can apply to anything from cannons to pistols but in modern parlance the term most commonly applies to black powder small arms similar in the main to the weapons used. It usually, but not always, involves the use of a loose propellant (i.e., gunpowder) and projectile, as well as a separate method of ignition or priming.
In general, the sequence of loading is to put in:
- Gunpowder, by pouring in a measured amount of loose powder, inserting a pre-measured bag or paper packet of gunpowder (called a cartridge) or by inserting solid propellant pellets. The gunpowder used is typically black powder or black powder substitutes like Pyrodex.
- Wadding, is made from felt, paper, cloth or card and has several different uses.
In shotguns, a card wad or other secure wadding is used between the powder and the shot charge to prevent pellets from dropping into the powder charge and on top of the shot charge to hold it in place in the barrel.
In smooth bore muskets and most rifles used prior to cartridges being introduced in the mid-to late nineteenth century, wadding was used primarily to hold the powder in place.
On most naval cannons, one piece of wadding was used to hold the powder in place and served the purpose of creating a better seal around the shot. Another was used to act as a plug to stop the shot rolling out due to the swaying of the ship.
For most of the time muzzleloaders were in use, a round ball and pre-measured powder charge were usually carried in a paper wrapping. The rifleman would bite off the end of the paper cartridge with his teeth and pour the powder into the barrel followed by the ball encased in the paper wrapping. The projectiles and wads were then pushed down into the breech with a ramrod until they are firmly seated on the propellant charge. Priming powder was usually carried in a separate container and poured into the priming pan and the lock was pushed down to hold the priming powder in place.
- The projectile or shot charge was placed in the barrel and a ramrod was used to firmly pack everything into the breech.
- Then either a priming charge was placed in the priming pan or percussion cap was placed on the nipple and the hammer was then cocked to make the firearm ready to fire
Projectile types and history
Muzzleloading firearms generally use round balls, cylindrical conical projectiles, and shot charges.
In some types of rifles firing round ball, a lubricated patch (see (Kentucky rifle )) of fabric is wrapped around a ball which is slightly smaller than the barrel diameter. In other types of round ball firing rifles, a ramrod and hammer is used to force the round ball down through the rifling. When fired, either the lead ball or the wrapping grips the rifling and imparts spin to the ball which usually gives improved accuracy. In rifles firing Minié balls, the patch, often the paper wrapping from the cartridge, is used as an initial seal and to hold powder in place during loading.
The Minié ball replaced the round ball in most firearms, especially military, in the 1830s and 1840s. It has a hollow base which expands to grip the rifling. The combination of the spinning Minié ball and the consistent velocity provided by the improved seal gave far better accuracy than the smoothbore muzzleloaders that it replaced.
When aiming for great accuracy, muzzle-loaders are usually cleaned ("swabbed") before reloading, so that there is no residue left in the barrel to reduce accuracy, though in competitions run by the international governing body, the MLAIC, this is prohibited for military rifle and musket events. However, in small arms muzzleloading rifles, swabbing is only done after every 5-10 shots. If cleaned after every shot, the barrel will not break in for hundreds of shots. Large caliber muzzle-loaders such as cannons are always swabbed between shots to prevent accidents caused by live sparks igniting the fresh charge of powder as it is being loaded.
Muzzleloading is the sport, or pastime of firing muzzleloading guns. Muzzleloading guns, both antique and reproduction, are used for target shooting, hunting, historical re-enactment and historical research. The sport originated in the United States in the 1930s, just as the last original users and makers of muzzleloading arms were dying out. The sport received a tremendous boost in the 1960s and 1970s. The Muzzle Loaders Associations International Committee (www.MLAIC.org) was formed in 1970 and held its first World Championship in 1971. Since then a flourishing industry manufacturing working reproductions of historic firearms now exists in the United States and Europe, particularly in northern Italy near Gardone.
The Muzzle Loaders Associations International Committee (MLAIC) governs international competition with muzzle-loading arms. The MLAIC holds a World Championship in even-numbered years.
Driven by demand for muzzleloaders for special extended primitive hunting seasons, firearms manufacturers have developed in-line muzzleloading rifles with designs similar to modern breech-loading centerfire designs. Knight Rifles pioneered the in-line muzzleloader in the mid-1980s. Savage Arms has created the 10ML-II, which can be used with smokeless powder, reducing the cleaning required.
- Breech-loading firearms
- Antique guns
- Caplock mechanism
- Black powder
- Rifled muzzle loader
- Jim Braaten (3 June 2009), "Knight Muzzleloading Rifles looks to close production", Minneapolis Star Tribune, archived from the original on 2 August 2011
- "Hunting drives today's blackpowder market". Shooting Industry. May 2004.
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- National Muzzle Loading Rifle Association
- Muzzle Loaders association of Great Britain
- Muzzle-Loading Associations International Committee