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  2. Muzzle velocity - Wikipedia

    en.wikipedia.org/wiki/Muzzle_velocity

    For projectiles in unpowered flight, its velocity is highest at leaving the muzzle and drops off steadily because of air resistance.Projectiles traveling less than the speed of sound (about 340 m/s (1,100 ft/s) in dry air at sea level) are subsonic, while those traveling faster are supersonic and thus can travel a substantial distance and even hit a target before a nearby observer hears the ...

  3. 9 mm caliber - Wikipedia

    en.wikipedia.org/wiki/9_mm_caliber

    This is a list of firearm cartridges that have bullets in the 9 millimeters (0.35 in) to 9.99 millimeters (0.393 in) caliber range.. Case length refers to the round case length.

  4. 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 ...

  5. Physics of firearms - Wikipedia

    en.wikipedia.org/wiki/Physics_of_firearms

    Let m b and v b stand for the mass and velocity of the bullet, the latter just before hitting the target, and let m t and v t stand for the mass and velocity of the target after being hit. Conservation of momentum requires m b v b = m t v t. Solving for the target's velocity gives v t = m b v b / m t = 0.016 kg × 360 m/s / 77 kg = 0.07 m/s = 0 ...

  6. 9×19mm Parabellum - Wikipedia

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

    The 9×19mm Parabellum (also known as 9mm Luger, 9mm NATO or simply 9mm) is a rimless, centerfire, tapered firearms cartridge. Originally designed by Austrian firearm designer Georg Luger in 1901, [ 6 ] it is widely considered the most popular handgun and submachine gun cartridge due to its low cost, adequate stopping power and extensive ...

  7. Table of handgun and rifle cartridges - Wikipedia

    en.wikipedia.org/wiki/Table_of_handgun_and_rifle...

    A guide to the recoil from the cartridge, and an indicator of bullet penetration potential. The .30-06 Springfield (at 2.064 lbf-s) is considered the upper limit for tolerable recoil for inexperienced rifle shooters. [2] Chg: Propellant charge, in grains; Dia: Bullet diameter, in inches; BC: Ballistic coefficient, G1 model; L: Case length (mm)

  8. Ballistic coefficient - Wikipedia

    en.wikipedia.org/wiki/Ballistic_coefficient

    Heavy-for-caliber pointed (spitzer) bullets with a boattail design have BCs at the higher end of the normal range, whereas lighter bullets with square tails and blunt noses have lower BCs. The 6 mm and 6.5 mm cartridges are probably the most well known for having high BCs and are often used in long range target matches of 300 m (328 yd ...

  9. Bullet - Wikipedia

    en.wikipedia.org/wiki/Bullet

    A bullet from a 9 mm Luger handgun, reaches speeds of only 2,200 kilometres per hour (1,370 mph ... For slightly higher-speed bullets fired in modern ...