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Both share an identical head/rim. The 450B is limited to 35,000-psi, which is more common in pistols, and lower than similarly sized rifle cartridges. The 450B uses .452" diameter bullets, most often seen in the abundant 45-caliber pistol styles. The 300gr version is rated at 1900fps at the muzzle, and the 250gr at 2200fps. 458 SOCOM ...
The GR-1 uses a clamped quasi-resonant (CQR) step-up inverter described in U.S. Patent 10,811,995, [1] which allows a six-cell 25.2 volt lithium-ion polymer battery to supply up to 1000 watts of power to eight high-voltage electrolytic capacitors in approximately three seconds. [2]
Because the speed of sound in air at 68 °F (20 °C) is about 1,115 ft/s (340 m/s), the subsonic round's muzzle velocity is slightly below the speed of sound under many hunting conditions. However, under cold air conditions at 32 °F (0 °C), the speed of sound drops to 1,088 ft/s (332 m/s), approximately muzzle velocity.
.22-250 Remington maximum C.I.P. cartridge dimensions. All sizes in millimeters (mm) / Imperial (inches). The .22-250 Remington / 5.7x48mm is a very high-velocity, short action, .22 caliber rifle cartridge primarily used for varmint hunting and small game hunting. It is capable of reaching over 4,000 feet per second.
Muzzle velocity: 380 m/s (1,260ft/s) Effective firing range (150 m) (163 yd) ... Savage Model 64 series is a semi-automatic .22 LR rifle made by Savage Arms in Canada.
.22 Remington Jet. This cartridge was developed by Remington for a Smith & Wesson Model 53 revolver and a Marlin Model 62 lever-action rifle, but the rifle was never produced in this caliber. The .22 Remington Jet was a necked-down .357 Magnum case. [20] The .22 Jet is no longer manufactured by Remington or other commercial manufacturers..357 SIG.
Although the .22 PPC is a short, rather stubby case (only 1.51 inches (38 mm) long), it nevertheless develops ballistics superior to some larger, longer cartridges such as the .222 and .223 Remington. The 52-grain bullet can be pushed out of the muzzle at over 3,500 feet per second (1,100 m/s), placing the .22 PPC in the varmint and small game ...
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).