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  2. Wildcat cartridge - Wikipedia

    en.wikipedia.org/wiki/Wildcat_cartridge

    A .308 Winchester necked down to 7 mm (.284 caliber), the 7 mm-08 provides a flatter trajectory with lighter, more aerodynamic 7 mm bullets. [14] 7-30 Waters. Designed to improve the performance of lever-action rifle designs dating back to the 1890s, the 7-30 Waters is a .30-30 Winchester necked down to 7 mm (.284 caliber). Even with the lower ...

  3. 6 mm XC - Wikipedia

    en.wikipedia.org/wiki/6_mm_XC

    [2] [3] The round originated from chambering a barrel using a .243 Winchester reamer held short, with the case reformed from .22-250. [2] The round is optimised for bullets heavier than 100 grains to improve performance at long ranges - .243Win typically uses bullets lighter than 100 grains. [ 4 ]

  4. .243 Winchester - Wikipedia

    en.wikipedia.org/wiki/.243_Winchester

    The .243 is based on a necked down .308 Winchester, introduced only three years earlier. Expanding monolithic copper bullets of approximately 80 [3] to 85 [4] [5] grains or traditional lead rounds of 90 to 105 grains with controlled expansion designs are best suited for hunting medium game, while lighter rounds are intended for varmints. [6] [7]

  5. Handloading - Wikipedia

    en.wikipedia.org/wiki/Handloading

    Components of a modern bottleneck rifle cartridge. Top-to-bottom: Copper-jacketed bullet, smokeless powder granules, rimless brass case, Boxer primer.. Handloading, or reloading, is the practice of making firearm cartridges by manually assembling the individual components (metallic/polymer case, primer, propellant and projectile), rather than purchasing mass-assembled, factory-loaded ...

  6. 6mm Remington - Wikipedia

    en.wikipedia.org/wiki/6mm_Remington

    The .244 Remington lagged behind the .243 Winchester in the marketplace of the mid-1950s. Winchester also introduced a similar dual purpose cartridge of the same caliber with greater success in 1955, the .243 Winchester, but with 80 and 100 grain bullet options for its Model 70 with a 1 in 10-inch twist to allow for the slightly heavier bullet.

  7. Whisper (cartridge family) - Wikipedia

    en.wikipedia.org/wiki/Whisper_(cartridge_family)

    The Whisper family was developed as a line of accurate, multi-purpose cartridges using relatively heavy rifle bullets for a given caliber in subsonic loads. [1] [2] [3] The intention was to create an extremely accurate cartridge family for military, police, competition and specialized hunting markets that could also be easily sound suppressed.

  8. .243 Winchester Super Short Magnum - Wikipedia

    en.wikipedia.org/wiki/.243_Winchester_Super...

    The 243 Winchester Super Short Magnum or 243 WSSM is a rifle cartridge introduced in 2003. It uses a .300 WSM ( Winchester Short Magnum ) case shortened and necked down to accept a .243in/6mm diameter bullet, and is a high velocity round based on ballistics design philosophies that are intended to produce a high level of efficiency. [ 2 ]

  9. Winchester Super Short Magnum - Wikipedia

    en.wikipedia.org/wiki/Winchester_Super_Short_Magnum

    Winchester Super Short Magnum, or WSSM is a line of rebated bottlenecked centerfire short magnum cartridges introduced by the U.S. Repeating Arms Company (Winchester Inc). [1] It is a further development of the Winchester Short Magnum concept utilizing smaller bullets, but of a still higher velocity.