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  2. Power factor (shooting sports) - Wikipedia

    en.wikipedia.org/wiki/Power_factor_(shooting_sports)

    In the classic division a choice can be made between up to a 10-shot capacity 1911 with minor scoring (e.g. 9×19mm) or up to an eight-shot capacity 1911 with major scoring (e.g. .40 S&W or .45 ACP). In the revolver division major scoring can be achieved with a 9 mm bullet diameter, but with a power factor of 170.

  3. .38/.45 Clerke - Wikipedia

    en.wikipedia.org/wiki/.38/.45_Clerke

    It is essentially a .45 ACP case, necked down to .357, resulting in a cartridge similar in form to the earlier 7.65×21mm Parabellum and 7.63×25mm Mauser cartridges. It was created to be a low recoil target cartridge that would function reliably with multiple bullet types, FMJ to cast lead wadcutters without the feeding problems that straight walled pistol rounds sometimes exhibit. [2]

  4. List of body armor performance standards - Wikipedia

    en.wikipedia.org/wiki/List_of_body_armor...

    14.9 g (230 gr) .45 ACP Full Metal Jacketed (FMJ) bullets at a velocity of 259 m/s ± 9.1 m/s (850 ft/s ± 30 ft/s). It also provides protection against the threats mentioned in [Type I]. Level II 9mm +P.357 Magnum: New armor protects against 8 g (124 gr) 9 mm FMJ RN bullets at a velocity of 398 m/s ± 9.1 m/s (1305 ft/s ± 30 ft/s)

  5. .45 ACP - Wikipedia

    en.wikipedia.org/wiki/.45_ACP

    The .45 ACP is an effective combat pistol cartridge. It combines accuracy as well as stopping power for use against human targets, has relatively low muzzle blast and flash, and it produces moderate recoil in handguns (made worse in compact models or with hot loads). The .45 ACP is generally considered to have greater stopping power than the 9mm.

  6. .38 Special - Wikipedia

    en.wikipedia.org/wiki/.38_Special

    In response to continued complaints over ineffectiveness of the standard .38 Special 158-grain cartridge in stopping assailants in numerous armed confrontations during the 1950s and 1960s, ammunition manufacturers began to experiment with higher-pressure (18,500 CUP) loadings of the .38 Special cartridge, known as 38 Special +P (+P or +P+ ...

  7. .38 Long Colt - Wikipedia

    en.wikipedia.org/wiki/.38_Long_Colt

    The .38 Long Colt's predecessor, the .38 Short Colt, used a heeled bullet of 130 grains (8.4 g) at a nominal 770 ft/s (230 m/s), producing 165 ft⋅lbf (224 J) muzzle energy. The cylindrical "shank" or "bearing surface" of the bullet, just in front of the cartridge case mouth, was .374 or .375 in (9.50 or 9.53 mm) in diameter, the same as the ...

  8. Subsonic ammunition - Wikipedia

    en.wikipedia.org/wiki/Subsonic_ammunition

    Subsonic loads for 9×19mm Parabellum commonly use 9.5 g (147 gr) bullets at velocities of 300 m/s (980 ft/s). For these ammunition loads, balancing bullet weight and velocity are required to ensure that the ammunition will still reliably cycle semi-automatic firearms. Subsonic ammunition with normal bullet weights often fails to function ...

  9. List of .45 caliber handguns - Wikipedia

    en.wikipedia.org/wiki/List_of_.45_caliber_handguns

    .38 Super.45 ACP Spain: 1982 Ballester–Molina: Hispano Argentina Fábrica de Automóviles S.A..45 ACP.22 LR Argentina: 1938 Beretta 8000: Beretta: 9×19mm Parabellum.357 SIG.40 S&W.41 Action Express.45 ACP Italy: 1994 Beretta Px4 Storm: Beretta: 9×19mm Parabellum.40 S&W.45 ACP Italy: 2004 BFD 1911: BFD .45 ACP United States: 2010s Bren Ten