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  2. 7mm Remington Short Action Ultra Magnum - Wikipedia

    en.wikipedia.org/wiki/7mm_Remington_Short_Action...

    The low demand for factory ammunition in 7mm SAUM has resulted in a sharp increase in the cost of 7mm SAUM as of mid 2014. Currently 7mm SAUM is experiencing a rebound in popularity with custom rifle builders and handloaders, as it is able to drive the long (180 grain class) bullets fast enough for long range target shooting.

  3. 7mm Remington Ultra Magnum - Wikipedia

    en.wikipedia.org/wiki/7mm_Remington_Ultra_Magnum

    The 7mm RUM was created using the .404 Jeffery case [citation needed] which was also used to develop the .375 RUM.300 RUM, and .338 RUM [citation needed]. By necking down the .300 RUM to suit the .284 or 7mm projectile, Remington produced a non-belted case with a head diameter that is somewhat larger than the belt diameter of the original ...

  4. .284 Winchester - Wikipedia

    en.wikipedia.org/wiki/.284_Winchester

    This former wildcat, made by necking down the original Winchester .284 casing to 6.5mm (.264), was developed for long range target shooting where participants usually handload their ammunition. At that time, it was one of the most used non-wildcat cartridges by match shooters in F-Class and 1000 yd/m benchrest long range competitions. [ 8 ]

  5. Table of handgun and rifle cartridges - Wikipedia

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

    Common rifle cartridges, from the largest .50 BMG to the smallest .22 Long Rifle with a $1 United States dollar bill in the background as a reference point. This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name. Data values are the highest found for the cartridge, and might not occur in the same load ...

  6. 7mm Shooting Times Westerner - Wikipedia

    en.wikipedia.org/wiki/7mm_Shooting_Times_Westerner

    The 7mm Shooting Times Westerner, sometimes referred to as the 7mm STW, began as a wildcat rifle cartridge developed by Layne Simpson, Field Editor of Shooting Times, in 1979. [3] It is an 8mm Remington Magnum case that has been "necked down" (narrowing the case opening) by 1 mm to accept 7 mm (.284 in) bullets.

  7. 7 mm caliber - Wikipedia

    en.wikipedia.org/wiki/7_mm_caliber

    This is a list of firearm cartridges which have bullets in the 7.00 to 7.99 millimetres (0.2756 to 0.3146 in) caliber range. Length refers to the cartridge case length. OAL refers to the overall length of the cartridge.

  8. Precision-guided firearm - Wikipedia

    en.wikipedia.org/wiki/Precision-guided_firearm

    The three main technologies employed for long-range shooting—the bolt-action rifle, telescopic rifle scope and machined cartridge ammunition—were developed in the nineteenth century. The first bolt-action rifle was produced in 1824 by the German firearms inventor Johann Nicolaus von Dreyse. The first documented telescopic rifle sight was ...

  9. 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.