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Precision sights are also a requirement. High-quality aperture iron sights could be used, but nearly all benchrest events allow telescopic sights. High magnification scopes are generally preferred; magnifications of 24×, 36×, or higher are common when allowed. Generally, scopes will have turret adjustments to allow the scope to be easily ...
Iron sights are a system of physical alignment markers used as a sighting device to assist the accurate aiming of ranged weapons such as firearms, airguns, crossbows, and bows, or less commonly as a primitive finder sight for optical telescopes. Iron sights, which are typically made of metal, are the earliest and simplest type of sighting device.
For example, a rifle capable of firing a ½ or 0.5 MOA (approximately 0.5 inch center to center of the two holes furthest apart) 5-round group (often referred to as "grouping") at 100 yards will theoretically fire a 12.5 inch group at 2,500 yards (0.5 × 2,500/100 = 12.5). Unless the group is centered perfectly on the target at 100 yards, the ...
Groups for rifles are traditionally shot at either 100 meters or 100 yards (91 m). At 100 yd a minute of arc equals 1.047 inches (26.6 mm), and the one MOA group (approximately 1/3 or 0.3 mil) is a traditional benchmark of accuracy. Handguns are generally used at closer ranges, and are tested for accuracy at their intended range of use.
The M16A4 rear aperture sights are adjustable from 300 m (330 yd) up to 600 m (660 yd), where the further similar M16A2 iron sights line can reach up to 800 m (870 yd). The introduction of the Picatinny rail required the use of a higher F-marked front sight base to raise the post.
The maximum barrel length is 273 mm (11 in), the maximum sight radius is 342 mm (13 in), and the maximum weight is 1,814 g (4.0 lb). The overall length of the firearm can be no more than 406 mm (16 in) for pistols and 457 mm (18 in) for revolvers. Only open iron sights are permitted, and diopter sights are thus not permitted.
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 ...
Side view of handgun point shooting position. Point shooting (also known as target-[1] or threat-focused shooting, [2] intuitive shooting, instinctive shooting, subconscious tactical shooting, or hipfiring) is a practical shooting method where the shooter points a ranged weapon (typically a repeating firearm) at a target without relying on the use of sights to aim.