Encyclopedia · Cannon and weapon systems

20-pounder Parrott rifle

The 20-pounder Parrott rifle was the heaviest of the field Parrotts, with a 3.67-inch bore. It gave batteries longer range and a heavier shell than the 10-pounder, at the cost of greater weight.

Also known as: 3.67-inch Parrott.

TypeCast-iron rifled gun with wrought-iron band
Bore3.67 inches
ClassHeavy field or light siege rifle, about a 20-pound projectile
DesignerRobert P. Parrott, West Point Foundry

The heavy field Parrott

The 20-pounder Parrott was the largest Parrott rifle regularly used in the field, its 3.67-inch bore throwing a shell of about twenty pounds. It reached farther and struck harder than the 10-pounder, and it bridged the gap between field artillery and the heavier siege and seacoast Parrotts.

Its weight made it less mobile than the lighter field guns, so it was often assigned to reserve and siege roles. Like all Parrotts it was cast iron reinforced with a wrought-iron breech band, and it shared the type's economy and its occasional tendency to burst at the muzzle.

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