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The .40 S&W (10.2×22mm) is a rimless pistol cartridge developed jointly by American firearms manufacturers Smith & Wesson and Winchester in 1990. [3] The .40 S&W was developed as a law enforcement cartridge designed to duplicate performance of the Federal Bureau of Investigation's (FBI) reduced-velocity 10mm Auto cartridge which could be retrofitted into medium-frame (9 mm size) semi ...
After announcing consideration of using hollow point ammunition for side arms, with a possible start date of 2018, [10] the United States Army began production of M1153 special purpose ammunition for the 9×19mm Parabellum with a 147-grain (9.5 g) jacketed hollow point bullet at 962 feet (293 m) per second for use in situations where limited ...
JHP penetrated 9 inches (230 mm) of ordnance gelatin and "equals the predicted stopping power of the 10mm 135-grain (8.7 g) JHP loads," [6] and that the 165 gr (10.7 g). JHP "penetrates an ideal 12.3 inches (310 mm) of gelatin" and "should be a 92-percent stopper, per the Fuller Index."
The .40 Super drives a 135 grain bullet to 1,800 feet per second while generating less chamber pressure than the 9x23mm Winchester. With a 200-grain bullet, the .40 Super delivers more foot-pounds of energy at 100 yards than the .45 ACP does at the muzzle. The original plan was to market the .40 Super as the .40 SIG, the big brother to the .357 ...
To produce a smokeless-propellant round that would engage in rifling efficiently but also match or exceed the lethality of the old, low-velocity ammunition it was necessary to invent the soft-point. The process was not difficult: reversing the direction of jacket placement leaves the lead-alloy core exposed at the forward tip of the projectile ...
The use of the term dumdum for expanding bullets other than the early .303 designs is considered slang by most ammunition and ballistics sources. [15] [16] Manufacturers have many terms to describe the particular construction of the various types of expanding bullets, though most fall into the category of soft-point or hollow-point designs.
The Hi-Point Model JHP is a polymer-framed, semi-automatic, blowback-operated pistol manufactured by Hi-Point Firearms. It is chambered in .45 ACP and is rated to accept +P ammunition . Design
Standard factory loads for the .22 TCM include a 40-grain jacketed hollow point (JHP), referred to as the "long slug," and a 39-grain JHP, known as the "9R" or "short slug." Both cartridges use the same .22 TCM case but differ in projectile length.