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The .22 Spitfire is an American wildcat rifle cartridge developed by Col. Melvin M. Johnson. It was originally named the MMJ 5.7mm [ 1 ] by its designer and is also known in the U.S. as the 5.7mm Johnson , the Johnson MMJ 5.7mm Spitfire , and the .22 Johnson , (or 5.7×33mm internationally).
If "bounced" while cruising at low speeds it could take a Spitfire up to two minutes to accelerate to top speed. [58] The only way it was thought that a Spitfire could evade attack was to cruise at high speed and go into a shallow dive with the throttle open. Provided the Fw 190 was seen in time, it could be forced into a long stern chase. [57]
[122] Although not as fast as the Spitfire, the Zero could out-turn the Spitfire, could sustain a climb at a very steep angle, and could stay in the air for three times as long. [123] To counter the Zero, Spitfire pilots adopted a "slash and run" policy and used their faster speed and diving superiority to fight, while avoiding turning ...
These rifles are similar to the L115A3 Long Range Rifle used by Craig Harrison but outfitted with Schmidt & Bender 3-12x50 PM II telescopic sights. Reports regarding the longest recorded sniper kills that contain information regarding the shooting distance and the identity of the sniper have been presented to the general public since 1967.
The .22 long rifle, also known as the .22 LR or 5.7×15mmR, [4] [5] is a long-established variety of .22 caliber rimfire ammunition originating from the United States. It is used in a wide range of firearms including rifles , pistols , revolvers , and submachine guns .
The limitation of the single stage supercharger was that the maximum power dropped quickly as higher altitudes were reached; because air pressure and air density decreases with altitude the efficiency of a piston engine drops because of the reduction in the weight of air [nb 1] that can be drawn into the engine; for example the air density, at ...
As European settlers found early on, their regular muskets were inadequate against dangerous African game. Early gun adaptations were essentially shotguns with extra long (smoothbore) barrels, firing solid balls. By the mid-19th century, the 12, 10, 8, 6, 4, and 2 bore muskets had been strengthened and bulked up for much larger powder charges.
An intermediate cartridge is a rifle/carbine cartridge that has significantly greater power than a pistol cartridge but still has a reduced muzzle energy compared to fully powered cartridges (such as the .303 British, 7.62×54mmR, 7.65×53mm Mauser, 7.92×57mm Mauser, 7.7×58mm Arisaka, .30-06 Springfield, or 7.62×51mm NATO), and therefore is ...