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Here is an example of a ballistic table for a .30 calibre Speer 169 grain (11 g) pointed boat tail match bullet, with a BC of 0.480. It assumes sights 1.5 inches (38 mm) above the bore line, and sights adjusted to result in point of aim and point of impact matching 200 yards (183 m) and 300 yards (274 m) respectively.
Bullet drop and wind drift are shown both in mrad and moa. Milliradian adjustment is commonly used as a unit for clicks in the mechanical adjustment knobs (turrets) of iron and scope sights both in the military and civilian shooting sports. New shooters are often explained the principle of subtensions in order to understand that a milliradian ...
Shooting at close range indicates a cylinder bore barrel to deliver a wide grouping, while for hunting at longer distances such as 50 yards or meters, a choke is recommended to constrict the scattering for a tighter pattern. [3] In archery, a shot grouping is the result of one person shooting multiple arrows at a target.
Groups may alternatively be described by the angle of dispersion. A one-inch group at 100 yards is approximately equivalent to one minute of angle, [2] indicating that firearm would be expected to place bullets within a two-inch group at 200 yards, or within a three-inch group at 300 yards. [3] Terminology may be confusing.
The limiting factor is the bullet's trajectory: the best hunting bullets are heavy, so they are relatively slow. This means the projectile's trajectory will drop significantly at ranges beyond 100 yards (91 m); there will be virtually zero significant drop at 50 yd (46 m), so the gun's aimed "line of sight" can meet the "bullet's trajectory" at ...
2.7×9mm 650 [3] 3 [3] 0.009 0.108 [3] 9mm Obsolete. Smallest round ever manufactured. [3] 4.6×30mm: 2000 Germany H 4.6×30mm 2410 400 0.332 0.183 30mm Bottlenecked high velocity PDW cartridge designed by Heckler & Koch in conjunction with the Heckler & Koch MP7 personal defense weapon. 5 mm Remington Rimfire Magnum: 1970 [3] US 0 [3] R 5× ...
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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 ...