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Velocities for modern varmint rounds are usually in excess of 3,000 ft/s (910 m/s) such as the .223 Remington and some like the .220 Swift can exceed 4,000 ft/s (1,200 m/s). This allows long range shots with a short time of flight, and little change in trajectory at different ranges (see external ballistics). A bullet drop of only a couple of ...
Milliradian-reticle-equipped scopes are well suited for long shots under uncertain conditions, such as those encountered by military and law enforcement snipers, varmint hunters and other field shooters. These riflemen must be able to aim at varying targets at unknown (sometimes long) distances, so accurate compensation for bullet drop is required.
The sandbags provide all the support. By allowing the rifle to move freely backward, the shooter hopes that the movement under recoil will be as consistent as possible. A few short-range rifles and long-range rifles with heavy recoil must be firmly held, even though the aiming is still done with the positioning of the rests.
Loaded with lighter bullets, the .260 Remington can be used as an effective varmint or a small predator hunting cartridge for use against such species as marmots, woodchucks, bobcats and coyotes. Bullets chosen for these species should be designed to open rapidly unless harvesting of the pelt is the objective.
It is based on the 6mm BR Remington cartridge, although where Remington's cartridge was intended for bullets of about 70 grains (4.5 g), Norma standardized their set of chambering specifications for a very low drag (VLD) bullet of over 100 grains (6.5 g), thus realizing the long-range capabilities of the cartridge. This required a much longer ...
The reticle features a stadiametric rangefinder, ranging out to 400 meters and a single chevron as an aiming point with vertical stadia lines for a windage hold. [6] The PSO-1M2-1 has also been made in a version for the 7.62×39mm intermediate cartridge, which has the range drum marked for up to 1,000 meters. This version has a 400 m stadia ...
The weight of the bullet is a key part of achieving a very high velocity for a rimfire round. It weighs only 17 grains (1.10 g) vs 30-40 grains (1.94-2.59 g) of a typical .22 LR bullet. [2]
The Vektor CR-21 is a South African bullpup assault rifle ("CR-21" being an abbreviation of Combat Rifle 21st Century) chambered for 5.56×45mm NATO ammunition. It was designed by Denel Land Systems as a possible replacement for the South African National Defence Force's Vektor R4, [1] though Denel Land Systems has since shifted focus to offering an upgraded R4 rifle to the SANDF instead.