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  2. Primer (firearms) - Wikipedia

    en.wikipedia.org/wiki/Primer_(firearms)

    In 2013, Winchester released the .17 Winchester Super Magnum, which utilizes the larger case of the long-obsolete .25 Stevens allowing for velocities approaching 3,000 ft/s (910 m/s) with a 20 gr (1.3 g) bullet and making it the world's fastest and most powerful rimfire round in use today.

  3. List of rifle cartridges - Wikipedia

    en.wikipedia.org/wiki/List_of_rifle_cartridges

    .25-20 Winchester.25-35 Winchester.25-45 Sharps.297/250 Rook.250-3000 Savage.255 Jeffery Rook.256 Gibbs Magnum.256 Newton.256 Winchester Magnum.257 Roberts.257 Weatherby Magnum.26 Nosler.260 Remington.264 LBC-AR.264 Winchester Magnum.270 Weatherby Magnum.270 Winchester.270 Winchester Short Magnum.275 H&H Magnum.275 No 2 Magnum.275 Rigby.276 Enfield

  4. 20-gauge shotgun - Wikipedia

    en.wikipedia.org/wiki/20-gauge_shotgun

    The 20-gauge shotgun, also known as 20 bore, is a type of smoothbore shotgun. 20-gauge shotguns have a bore diameter of .615 in (15.6 mm), while the 12-gauge has a bore diameter of .729 in (18.5 mm). [ 2 ] 12-gauge and 20-gauge shotguns are the most popular gauges in the United States .

  5. Remington Model 870 - Wikipedia

    en.wikipedia.org/wiki/Remington_Model_870

    12-gauge, 20-gauge 28, 26, 21, 21 and 20 in (710, 660, 530, 530 and 510 mm) Vent rib Rem Choke and fully rifled Bead and rifle sights, satin blue receiver finish, matte black synthetic stock finish. [13] Special Purpose Marine Magnum 12-gauge 18 + 1 ⁄ 2 in (470 mm) Cylinder choke Corrosion resistant utility gun with synthetic stock. [13]

  6. .40 Super - Wikipedia

    en.wikipedia.org/wiki/.40_Super

    By trimming .45 Winchester Magnum brass to 10 mm case length and necking them to .40 caliber, the .40 Super began to take final shape. .40 Super ammunition box. Working closely with Starline Brass Company, more testing was conducted on the cartridge case. These tests led to further improvements. A small primer pocket replaced the large primer ...

  7. .300 Norma Magnum - Wikipedia

    en.wikipedia.org/wiki/.300_Norma_Magnum

    The .300 Norma Magnum, also known as .300 NM or 300 Norma, is a centerfire magnum rifle cartridge developed by Swedish ammunition manufacturer Norma Precision.The .300 Norma Magnum uses a .338 Norma Magnum parent case necked down to .30 caliber, [1] named to differentiate it from the older .308 Norma Magnum designed in 1960, and has begun to gain popularity among long-range shooters.

  8. Power factor (shooting sports) - Wikipedia

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

    In both the open and standard rifle divisions, minor power factor is dominating due to less recoil, and 5.56×45mm/ .223 Rem is a common caliber. Ammunition loaded to major power factor such as 7.62×51 mm / .308 Win has a bigger recoil impulse, and is regarded as having an advantage on stages with targets at long range.

  9. S333 Thunderstruck - Wikipedia

    en.wikipedia.org/wiki/S333_Thunderstruck

    Standard Manufacturing is known for producing the DP-12, a pump action double-barreled shotgun with dual tube magazines, with each trigger pull alternating which barrel is fired from. [2] In 2017, Standard Manufacturing introduced the S333 Volleyfire, a pepper-box revolver with a cylinder holding six rounds of .25 ACP , generally regarded as a ...