Yes, they do shoot the same projectile although the 22-250 takes a heavier charge of the same powder over the .223.
NEVER FIRE AMMUNITION IN A WEAPON THAT IS NOT CHAMBERED FOR IT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Danger, Danger, Danger
5.56 and 223 cal. are the same cartridge...........
The typical AR15 fires the same type of bullet as the M16: a .223 caliber (5.56mmx45mm NATO) round. There are AR-15 rifles that have special barrels made for a variety of popular cartridges, even the little .22LR.
Caliber refers to the diameter of a bullet (bullet is the part of a cartridge that is fired out of the gun). A .223 caliber bullet is .223 inches across. It is normally used as a rifle cartridge. a .45 caliber bullet is more than twice as wide as a .223, and is usually used in pistols. The .223 is lighter- it weighs about 1/4 of a .45 bullet, and they are different shapes- .223 is usually pointed, the .45 is rounded.
In terms of power, or diameter? A .22 has a bullet diameter of .223 inches, the same as the .223 Remington and 5.56 military cartridge. The .222 Remington actually has a bullet diameter of .224 inches.
Depends on the Caliber and grain of bullet. You can shoot a .22 m4 accurately probably 100-150 yards. Then with the 5.56/.223 round can be shot 600-659 yards accurately.
Any firearm chambered for .223 or 5.56mm
Only .223 ammo. There are different bullet weights.
.223 inches in diameter, typically 45 to 55 grains for the .223 Remington, and 80 grains for the .223 Wylde.
No. Not even close.
It depends on what you mean. Strictly speaking, a .223 cartridge has a .22 caliber bullet, but when people say .22, they are usually referring to .22 Short, Long Rifle, or Magnum cartridge, which is different than .223.
While outwardly they appear the same and they both use the same bullet, the 5.56 has thicker case walls and a smaller capacity for powder. The 5.56 is the standard NATO round and guns chambered in 5.56 will shoot .223 with no problem at all. The opposite is not always true because the 5.56 will produce higher chamber pressure and it's not always safe in all guns chambered in .223. Also, you cannot use .223 reloading dies for 5.56 brass. The brass will not cycle through the die at all.