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  2. Shot grouping - Wikipedia

    en.wikipedia.org/wiki/Shot_grouping

    Handguns are typically less accurate; at a shooting distance of 25 yd, a grouping is considered acceptable for self-defense if the shots fall within a circle of 4 to 5 inches, which is 15 to 19 MOA (equivalent to a grouping of 100-150 mm at 25 meters, which is 4-6 mils), [9] representing the shot pattern needed to hit the vital organs of a ...

  3. Long range shooting - Wikipedia

    en.wikipedia.org/wiki/Long_range_shooting

    Shooting distances can vary from between 10 and 1,000 meters/ yards, [14] and therefore the competitor must know the ballistics of his firearm very well. A competition usually consists of several courses of fire, and requires some physical activity since the shooter has a time limit to move between the various courses of fire.

  4. Semi-automatic firearm - Wikipedia

    en.wikipedia.org/wiki/Semi-automatic_firearm

    The Colt AR-15, a type of semi-automatic rifle. A semi-automatic firearm, also called a self-loading or autoloading firearm (fully automatic and selective fire firearms are also variations on self-loading firearms), is a repeating firearm whose action mechanism automatically loads a following round of cartridge into the chamber and prepares it for subsequent firing, but requires the shooter to ...

  5. What do you know about the AR-15 rifle? Here are five facts ...

    www.aol.com/news/know-ar-15-rifle-five-170837426...

    According to the National Shooting Sports Foundation, there were 20 million AR-15 style weapons as of 2020. From 1990 to 2020, the U.S. imported or manufactured over 24.4 million. In 2020 alone ...

  6. Longest recorded sniper kills - Wikipedia

    en.wikipedia.org/wiki/Longest_recorded_sniper_kills

    This list is not exhaustive, as such data is generally not tracked nor managed under any official procedure. For example, the 2002 Canadian Army sniper team that saw two soldiers set consecutive new records (Arron Perry at 2,310 m (2,526 yd) and Rob Furlong at 2,430 m (2,657 yd)), also made a number of kills at 1,500 m (1,600 yd) that are not counted here. [23]

  7. Point-blank range - Wikipedia

    en.wikipedia.org/wiki/Point-blank_range

    The second point occurs as the projectile is descending through the line of sight and is called the far zero. At closer ranges under the near zero range (typically inside 15 to 25 m (16 to 27 yd)), the shooter must aim high to place shots where desired.

  8. What can an AR-15 do to the human body? A trauma surgeon ...

    www.aol.com/news/ar-15-human-body-trauma...

    Children are less likely to survive AR-15 wounds. The leading cause of death in children between the ages of 1 and 19 in the U.S. is gun violence, according to a recent New England Journal of ...

  9. List of AR platform cartridges - Wikipedia

    en.wikipedia.org/wiki/List_of_AR_platform_cartridges

    The AR-15 rifle usually comes chambered for either the military cartridge 5.56×45mm or the .223 Remington. Because of the pressures associated with the 5.56×45mm, it is not advisable to fire 5.56×45mm rounds in an AR-15 marked as .223 Remington, since this can result in damage to the rifle or injury to the shooter. [1]