Noop. an M16 fires a 5.56mm (or .223 caliber) bullet. A .45 caliber shoots a bullet that is ~11.43mm.
5.56x45.223 or 5.56
the m16 uses 5.56 caliber ammo
The M16 is an assault rifle that is a .223 caliber / 5.56 mm. like any weapon it is only as accurate as its shooter, <><><> It can be very accurate.
5.56mm by 45mm long. This is similar to, but not the same as .223
ww1 french mle m16 was 8mmx50mm lebel.
5.56,hope i helped,by the way my favourite rifle is the m16a2
In the 1960's there was the Gyrojet gun which were actually miniature rockets but the caliber was larger than the .223 round of the M16
Caliber? 0.224 inch Weight? 7.8 lbs empty Length? About 39.6 inches
Regular .68 caliber paintballs, all standard guns do. Also there is no "m16 paintball gun" , only guns that look like it.
Both the M16 and the M4 version of it are in caliber 5.56mm x 45mm. Likewise, the Heckler & Koch HK416 - which may be what you meant to refer to - is also is 5.56x45.
The M249 Squad Automatic Weapon fires the same 5.56x45mm cartridge used by the M16 and M4.