The Parrott rifle is a type of muzzle-loading artillery piece that was designed by Robert Parker Parrott, a military engineer and ordnance officer in the United States during the 19th century. The design was notable for its unique rifled barrel, which featured a thick exterior made of wrought iron and a thinner interior that was rifled. This construction method allowed the Parrott rifle to withstand higher pressures from the explosive charges used in the cannon's projectiles.
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