5.56x45 is the ammunition originally developed for the M16 rifle. Many people mistakenly claim it is the same as .223 Remington ammunition, although this is not true - while the dimensions are similar, neck angles and other measurements differ between the two cartridges.
In the late 1970s, after the US had announced that troops stationed in Europe would be equipped with M16 rifles, NATO sought a cartridge to make standard amongst their forces, in order for there to be cross compatability between NATO military forces. The weight of the 5.56x45 projectile was increased from 55 to 62 grains.
it fires a 5.56 by 51 milimeter standard NATO round. no... the m-16 and m4 are 5.56 x 45 NATO. 5.56 x 51 doesnt exist. its a 7.62 x 51 NATO round that an m-14 fires.
556 x 2 = 1,112
200858 x 556 = 111677048
Neither. They both use standard 5.56 X 45 mm NATO rounds.
Expressed as a percentage, 556/640 x 100 = 86.875 percent.
344 x 556=1,9707
2 x 2 x 139
2 x 2 x 139
1 x 2224, 2 x 1112, 4 x 556, 8 x 278, 16 x 139, 139 x 16, 278 x 8, 556 x 4, 1112 x 2, 2224 x 1
5.56mm x 45mm (5.56 is the diameter of the buller, 45mm is the length of the brass casing). NATO implies that this is THE 5.56mm round used by NATO forces. Similar to 7.62mm x 51mm NATO is the standard .30 caliber round use by NATO forces.
1 x 45 = 45 2 x 45 = 90 3 x 45 = 135 4 x 45 = 180 5 x 45 = 225 6 x 45 = 270 7 x 45 = 315 8 x 45 = 360 9 x 45 = 405 10 x 45 = 450 11 x 45 = 495 12 x 45 = 540
The first ten positive integer multiples of 45 are as follows: 1 x 45 = 45 2 x 45 = 90 3 x 45 = 135 4 x 45 = 180 5 x 45 = 225 6 x 45 = 270 7 x 45 = 315 8 x 45 = 360 9 x 45 = 405 10 x 45 = 450