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The table below gives a list of firearms that can fire the 5.56×45mm NATO cartridge, first developed and used in the late 1970s for the M16 rifle, which to date, is the most widely produced weapon in this caliber. [1] Not all countries that use weapons chambered in this caliber are in NATO. This table is sortable for every column.
Action Time here means the (short amount of) time required between the ignition of the primer and the projectile leaving the barrel. This is a comprehensive procedure for testing ammunition using state-of-the-art instruments and computers. The procedure itself was initially described in NATO document AC/225 (Com. III/SC.1)D/200.
AAI continued with the original 5.6×53mm XM110 rounds (or sized in 0,22 by 2.09 inches, while Springfield and Winchester used a new 5.6×44mm (0.22 by 1.73 inches) XM144 cartridge. The H&R design loaded the dart from the XM144 into their own cartridge design.
The shorter 14.5-inch (37 cm) barrel of the M4 carbine (with a STANAG 4172 conform 1:7 twist and M855/SS109 5.56 rounds^) generates significantly lower muzzle velocity, reducing the likelihood that the bullet will upset (yaw, fragment, or expand) in the target and resulting in less significant wounds.
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 ...
.270 Winchester.308 Winchester.300 Winchester Magnum.338 Winchester Magnum. 5.56×45mm NATO.30-06 Springfield. 7.62×39mm. 2011 United States: Ruger M77.220 Swift.22-250 Remington.243 Winchester.25-06 Remington.257 Roberts.264 Winchester Magnum.270 Winchester.284 Winchester.280 Remington.30-06 Springfield.308 Winchester.300 Winchester Magnum
Name Case type Bullet Length Rim Base Shoulder Neck Overall length 5mm Clement: 5.131 (.202) 14.7 (.580) 6.9 (.273) 6.75(.265)-5.85 (.232) 21.43 (.844) 5mm Bergmann
.25 Winchester Super Short Magnum.250 Savage.25-06 Remington.25-20 Winchester.25-35 Winchester.25-45 Sharps.297/250 Rook.250-3000 Savage.255 Jeffery Rook.256 Gibbs Magnum.256 Newton.256 Winchester Magnum.257 Roberts.257 Weatherby Magnum.26 Nosler.260 Remington.264 LBC-AR.264 Winchester Magnum.270 Weatherby Magnum.270 Winchester