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The .450 Bushmaster is descended from the Thumper concept popularized by the gun writer Jeff Cooper.Cooper was dissatisfied with the small-diameter 5.56×45mm NATO (.223 Remington) of the AR-15, and envisioned a need for a large bore (.44 cal or greater) cartridge in a semi-automatic rifle to provide one-shot kills on big-game animals at 250 yards.
The .450 No 2 Nitro Express was so named to differentiate it from the original. [1] [4] Ballistically, the .450 No 2 Nitro Express is almost identical to the original .450 Nitro Express and Holland & Holland's .500/450 Nitro Express also intended to replace the original. The early problems of the .450 Nitro Express were however soon resolved ...
STANAG magazines loaded with .223 Rem (left) and .450 Bushmaster (right) Over the years different cartridges that fit into the STANAG magazine emerged, some rounds like .300 AAC Blackout have the same rim diameter as .223 Remington and only require a barrel change to be used in a firearms that was previously using in .223 Remington .
The .360 Buckhammer, also called 360 BHMR (9.1×46mmR), is a SAAMI-standardized [2] straight-walled rifle cartridge developed by Remington Arms Company. [3] The cartridge was designed for use in American states that have specific regulations for deer hunting with straight-walled centerfire cartridges.
.450 Nitro Express also known as the .450 Nitro Express 3 1 ⁄ 4-inch is a rifle cartridge designed for hunting dangerous game such as elephant, rhino, cape buffalo, lion, and leopard. This cartridge is used almost exclusively in double rifles for hunting in the tropics or hot climates in general and is associated with the Golden Age of ...
The Adaptive Combat Rifle (ACR) is a modular assault rifle formerly designed by Magpul Industries of Austin, Texas, and known initially as the Masada.. In late January 2008, Bushmaster Firearms International entered into a licensing agreement with Magpul whereby Bushmaster would take over production, future development, and sales of the Masada. [5]
U.S. defense contractor Lockheed Martin Corporation has agreed to pay $29.74 million to settle allegations of defective pricing on contracts for F-35 military aircraft, the U.S. Justice Department ...
Bushmaster's firearms, such as the XM-15 line, were offered in a 5.56 NATO chambering with forged aircraft-grade (7075-T6) aluminum receivers. Most Bushmaster barrels were 4150 steel, offered in 1:9 twist rate, and chrome-lined to increase durability. Some barrels were available with 1:7 rifling on special order.