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  2. Small arms ammunition pressure testing - Wikipedia

    en.wikipedia.org/wiki/Small_arms_ammunition...

    Other benefits of the SAAMI conformal transducer are: very adaptive to the high volume quality control testing demands of commercial and law enforcement ammunition production; protection of the transducer from direct exposure to the high temperature combustion gases and hence a comparatively long service life; 80,000 psi (551.6 MPa) maximum ...

  3. Chamber pressure - Wikipedia

    en.wikipedia.org/wiki/Chamber_pressure

    Within firearms, chamber pressure is the pressure exerted by a cartridge case's outside walls on the inside of a firearm's chamber when the cartridge is fired. The SI unit for chamber pressure is the megapascal (MPa), while the American SAAMI uses the pound per square inch (psi, symbol lbf/in 2) and the European CIP uses bar (1 bar is equal to 0.1 MPa).

  4. 9×19mm Parabellum - Wikipedia

    en.wikipedia.org/wiki/9×19mm_Parabellum

    9mm NATO can be considered an overpressure variant of 9×19mm Parabellum that is defined by NATO standards. The proof pressure is 3,150 bars (45,700 psi), corresponding to a maximum service pressure of 2,520 bars (36,500 psi) (both using CIP methodology). [27]

  5. NATO EPVAT testing - Wikipedia

    en.wikipedia.org/wiki/NATO_EPVAT_testing

    The above proof round pressure requirements for the 9 mm and 12.7 mm rounds established by the British Ministry of Defence are higher than the current (2008) C.I.P. proof round pressure requirement legislation for the civilian equivalent 9 mm Parabellum (C.I.P. P max rating 235 MPA / (34,083 psi) and .50 Browning (C.I.P. P max rating 370 MPA ...

  6. Firearm maintenance - Wikipedia

    en.wikipedia.org/wiki/Firearm_maintenance

    Firearms produce massive momentary forces upon firing a bullet. A typical 9mm projectile produces a maximum of 34,084 psi (2,350.0 bar) of pressure in the instant of firing. [6] The amount of pressure a firearm may endure for the first few milliseconds after the cartridge fires can be over 2,300 times more than the normal atmospheric pressure ...

  7. 9×57mm Mauser - Wikipedia

    en.wikipedia.org/wiki/9×57mm_Mauser

    The CIP maximum average pressure (MAP) for the 9×57 is 280 MPa bar (40,600 PSI). Firearms using 9×57mm Mauser. Many sporting rifles in 9×57mm caliber, ...

  8. Overpressure ammunition - Wikipedia

    en.wikipedia.org/wiki/Overpressure_ammunition

    Speer Gold Dot 124gr 9mm+P in SIG P226 magazines. Overpressure ammunition, commonly designated as +P or +P+ (pronounced Plus-P or Plus-P-Plus), is small arms ammunition that has been loaded to produce a higher internal pressure when fired than is standard for ammunition of its caliber (see internal ballistics), but less than the pressures generated by a proof round.

  9. 9mm Major - Wikipedia

    en.wikipedia.org/wiki/9mm_Major

    9mm Major is a wildcat cartridge of the 9mm Luger specifically for competition pistols designed to handle very high pressure. It is used in practical shooting competitions like International Practical Shooting Confederation (IPSC) and United States Practical Shooting Association (USPSA) to achieve a "Major" power factor, which earns more points for hits in specific zones on paper targets ...