If you are asking about the Remington 6.5 rem.mag round,then this cartridge takes large rifle/or large rifle magnum primers.The .223 Remington cartridge takes the small rifle primer.Both of these center fire primers differ in size and cannot be interchanged.The .223 Rem cartridge requires small rifle primers.
A rifle with a 5.56x45 chamber can utilise .223 Remington cartridges. A rifle with a dedicated .223 Remington chamber cannot accommodate 5.56x45 cartridges. A rifle with a .223 Wylde chamber can accommodate .223 Wylde, .223 Remington, and 5.56x45, but neither a rifle with a 5.56x45 or a .223 Remington chamber can accommodate the .223 Wylde cartridge.
.223 Remington can be cycled in a 5.56x45 rifle; 5.56x45 should not be cycled in a .223 Remington firearm.
No.
Only if it is marked ".223 Remington" on the barrel.
5.56x45mm. It is dimensionally similar - but not identical - to the .223 Remington.
Never change components unless a proven manufacturer who publishes reloading data has tested it.
No, this is a dedicated .223 Remington chamber, and that's the only ammunition which should be used with this rifle. While the two rounds are matching in dimensions, they are not identical.
The 5.56 cartridge has a different neck angle from the .223 Remington, generates higher chamber pressures, and has different weight projectiles available. .223 Remington can be safely cycled through a rifle with a 5.56 chamber, but it is not recommended to use 5.56 ammo in a rifle with a .223 chamber.
NO very bad idea the bolt should not even close to do it but if it dose i wouldn't do it
The M16 assault rifle is chambered for the 5.56x45mm NATOintermediate rifle cartridge. It can also accept .223 Remington rounds.
A rifle with a bore which measures in the vicinity of .22 inches. Typically, "22" is used in reference to the rimfire cartridges, while centerfire cartridges will be described by their full designation (e.g., .223 Remington, .222 Remington, .204 Ruger, etc.).
.223 Remington ammunition can be fired safely in a 5.56x45 rifle; 5.56x45 ammunition cannot be safely fired in a .223 rifle. In the case of some partially imported rifles, they are marked .223 Remington in spite of having 5.56 chambers. This is done for compliance with BATFE laws regarding importation of certain firearms types. If in doubt about the compatibility, call the manufacturer - they're the ones who would know best.