Yes, you can. General rule of thumb is that .223 is perfectly suitable for a 5.56 chamber, but 5.56 ammo isn't suitable for a dedicated .223 chamber. The one exception to this rule is the .223 Wylde cartridge, which requires a specific .223 Wylde chamber.
lighter bullet and more ammo can be carried as opposed to the 30/06 or 308
556 - 223 = 333
Yes the mags work with both ammos. You can not tell the difference in the two by looking at them.
I assume that you are referring to 5.56mm in your question?,if so yes you can shoot this ammo in your rifle.The 5.56mm is the metric designation for the .223 Remington cartridge.
yes, except 556 is written as 5.56 caliber (223) Actually, no, it isn't. Although the dimensions match, the military 5.56 cartridge differs from the civilian .223 in several aspects, such as the neck angle, casing thickness, and chamber pressure. A general rule of thumb is that .223 Remington can be fired in a 5.56 chamber, but 5.56 ammo should not be fired in a dedicated .223 chamber.
.223 Remington can be cycled in a 5.56x45 rifle; 5.56x45 should not be cycled in a .223 Remington firearm.
The 5.56x45 cartridge is dimensionally similar to a .223 Remington. However, the two are not the same. A 5.56 chamber can safely fire .223 rounds, but a dedicated .223 chamber can't necessarily fire 5.56 cartridges safely, given the different angle of the cartridge neck, and the higher chamber pressures generated by the 5.56 cartridge over the commercial .223 round.
Yes it does, unless your barrel is stamped .223 .
if it is a 223 cal, then yes
The cartridges are similar, but not identical. Differences include:Slight variations in neck diameterSlight variations in base diameter (.378 inches for the 5.56 vs. .376 inches for the .223)Variations in the neck anglePressure rating (380 MPa for the .223 vs. 430 MPa for the 5.56)Case thicknessYou can safely fire .223 rounds in a 5.56 rifle, but it is not advisable to fire 5.56 rounds in a dedicated .223 rifle.
There are many brands of 556 ammo available. Some of the better rated ones by users include Barnes and Hornday. Both have great user ratings for hits and shots fired.
Yes there is a difference. They are physically the same size casing, but the 556 military rounds' chamber pressure is ~10,000 psi higher then 223. Military rifles generally have chambers with a different throat configuration than normal sport 223 rifles. This being said, I would not recommend shooting 556 unless your rifle was designed for the higher pressures.