Encyclopedia · Cannon and weapon systems

42-pounder gun

The 42-pounder gun was among the heaviest of the older smoothbore seacoast guns, with a 7-inch bore firing a 42-pound shot. Many were rifled and banded during the war.

Also known as: 42-pounder.

TypeHeavy smoothbore seacoast gun
Bore7 inches
ProjectileAbout 42 pounds
Later useFrequently rifled and banded

Heavy seacoast gun

The 42-pounder gun was one of the largest of the older seacoast smoothbores, firing a 42-pound shot from a 7-inch bore. It armed permanent coastal fortifications, where its weight was no drawback and its heavy shot could reach and damage warships.

Like the 32-pounder, many 42-pounders were rifled and banded during the war, a common expedient that turned an aging heavy smoothbore into a rifled gun able to fire elongated projectiles.

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