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FN's 5.7×28mm ammunition types were briefly manufactured by Olin-Winchester, but today they are made by FN Herstal in Belgium and (since 2006) Fiocchi in the United States. [ 10 ] [ 37 ] In 2009, the National Rifle Association of America added 5.7×28mm firearms to its NRA Tactical Police Competition standards, allowing law enforcement ...
The Five-seven is a semi-automatic delayed blowback pistol chambered for FN's 5.7×28mm ammunition. [8] The pistol has a concealed hammer. [8] Polymer materials are used extensively in the pistol's design, and even the steel slide is encased in a polymer shell. [11] [28] This provides reduced weight and greater resistance to corrosion.
Designed in conjunction with the FN Five-seven pistol and FN 5.7×28mm NATO ammunition, [4] development of the weapon began in 1986, and production commenced in 1990, when it was known as the Project 9.0 (from which the "90" in its name is derived [4]), whereupon the 5.7×28mm ammunition was redesigned and shortened. [3]
FN 5.7×28mm.224 5.7: 1.130 28.7: 1.710 43.4: ... Ballistics By The Inch testing of handgun cartridges and relationship between barrel length and velocity.
Weighing less and delivering higher velocities than the 9mm, the .22 TCM is also compared to calibers like the 7.62×25mm Tokarev and FN 5.7×28mm. These characteristics make it viable for lightweight and compact personal defense weapons (PDWs), such as AR-15-style pistols, akin to those conceptualized in the Colt MARS Program.
His cartridge was designed to fit the M1 Carbine and its magazines by starting from the basic form of the .30 Carbine ammunition, keeping the same overall length and case dimensions, necked down to .224 (5.7mm) caliber. [2] [3] Originally designed with a 1-in-14 twist barrel, the 40 grain .22 Hornet bullet was the standard load.
This ammunition is optimized for energy transfer in soft targets and offers good precision. [12] The muzzle velocity V 0 and V 100 indicate a G1 ballistic coefficient of 0.171 to 0.187. At the range of 100 m, the 2.7 g ball projectile travels at approximately Mach 1.36 (463 m/s) under International Standard Atmosphere conditions at sea level ...
They called the trigger "outstanding", and noted its light recoil, and said that the P50 was a "serious competitor" to other 5.7×28mm designs such as the FN Five-seven and Ruger-57. [ 11 ] The National Interest praised the low recoil, customisation options from the various rails, and the "one of a kind" top-break access , describing it as ...