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Under Iowa law, private citizens may not possess automatic firearms, any firearm "other than a shotgun or muzzle loading rifle, cannon, pistol, revolver or musket" with a bore of more than 6/10 of an inch (unless it is an antique made in or before 1898), or any explosive, incendiary or poison gas destructive device., short-barreled rifles ...
Yard workers hoist one of nine 16"/50 Mark VII gun barrels aboard the USS Iowa during her construction in 1942. The 16-inch/50 caliber Mark 7 guns of the forward turret of the battleship USS Wisconsin (BB-64) fire at enemy targets ashore on the Korean Peninsula on 30 January 1952 during the Korean War.
Typical cyclic rates of fire are 600–1100 rpm for assault rifles, 400–1400 rpm for submachine guns and machine pistols, and 600–1,500 rpm for machine guns. M134 Miniguns mounted on attack helicopters and other combat vehicles can achieve rates of fire of over 100 rounds per second (6,000 rpm).
With the passage of Senate Bill 880 and Assembly Bill 1135 in June 2016, the state's assault weapon ban has been expanded to include all semi-automatic center-fire rifles and shotguns that have a "bullet button" detachable magazine; effectively repealing a prior law that made "bullet button" magazines required on all newly manufactured weapons ...
The ships could fire any combination of their guns, including a broadside of all nine. The guns could be elevated from −5° to +45°, moving at up to 12° per second. [2] The turrets could be rotated about 300° at a rate of about four degrees per second and could even be fired back beyond the beam, which is sometimes called "over the shoulder."
The Minié ball of the middle 19th century increased the rate of fire of rifles to match that of smoothbores, and rifled muzzle-loading small arms were rapidly adopted. These long rifles and similar weapons were used from about 1700 to 1900, but gradually gave way to firearms whose projectile is loaded into the chamber via the breech , without ...
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The U.S. Navy had the 16"/50-caliber Mark 2 guns left over from the canceled Lexington-class battlecruisers and South Dakota-class battleships of the early 1920s. However it was already apparent that the Mark 2 was too heavy to arm the North Carolina and new South Dakota (1939) battleship classes which had to adhere to the 35,000 ton standard displacement set by the Second London Naval Treaty.