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A muzzle-loading rifle is a muzzle-loaded small arm that has a rifled barrel rather than a smoothbore, and is loaded from the muzzle of the barrel rather than the breech.. Historically they were developed when rifled barrels were introduced by the 1740ies, which offered higher accuracy than the earlier smooth
This is a list of United States Army fire control, and sighting material by supply catalog designation, or Standard Nomenclature List (SNL) group "F". The United States Army Ordnance Corps Supply Catalog used an alpha-numeric nomenclature system from about the mid-1920s to about 1958.
Muzzleloading artillery evolved across a wide range of styles, beginning with the bombard, and evolving into culverins, falconets, sakers, demi-cannon, rifled muzzle-loaders, Parrott rifles, and many other styles. Handcannons are excepted from this list because they are hand-held and typically of small caliber.
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Open blade sight The Hawken rifle is a muzzle-loading rifle that was widely used on the prairies and in the Rocky Mountains of the United States during the early frontier days. Developed in the 1820s, it became synonymous with the "plains rifle", the buffalo gun, and a trade rifle for fur trappers, traders, clerks, and hunters.
The 3-inch ordnance rifle, model 1861 was a wrought iron muzzleloading rifled cannon that was adopted by the United States Army in 1861 and widely used in field artillery units during the American Civil War. It fired a 9.5 lb (4.3 kg) projectile to a distance of 1,830 yd (1,670 m) at an elevation of 5°.
The most common is a rear sight that adjusts in both directions, though military rifles often have a tangent sight in the rear, which a slider on the rear sight has pre-calibrated elevation adjustments for different ranges. With tangent sights, the rear sight is often used to adjust the elevation, and the front the windage.
A more modern method of boresighting is to use a laser pointer to illuminate the distant point of aim, rather than using visual inspection. This method is preferable because it has less parallax, allows more movement in the gun as the projected laser beam will stay true to the bore axis, and does not require removing the bolt.