lighter bullet and more ammo can be carried as opposed to the 30/06 or 308
The military version of .223 caliber. Can't use it if your barrel is not marked 5.56.
No. If it does not have 5.56 on the barrel then use .223 ammo.
.223 Remington can be cycled in a 5.56x45 rifle; 5.56x45 should not be cycled in a .223 Remington firearm.
Yes, it was. Go to the Ruger website for more information. The military round is the 5.56x45 - while dimensionally similar to the .223 Remington, it is not entirely the same. The standard and Ranch models of the Mini 14 have a 5.56x45 chamber, which can accept both 5.56 and .223 Remington ammo. The Target models, however, have a dedicated .223 Remington chamber, and were not designed to use 5.56x45 military ammo.
Ar-15 for one. You can use .223 ammo in 5.56 barrells as well.
Yes, but 5.56 ammo should not be used in a .223 Remington chamber.
No. They're dimensionally similar, but vary in several aspects, and may not always be interchangeable. Generally speaking, most 5.56 chambers will do just fine firing .223 ammo, but it's not recommended to use 5.56 ammo in a .223 chamber. The one exception to this would be the 80 grain .223 Wylde - a round which specifically requires a .223 Wylde chamber.
The R-15 uses SAAMI .223 Remington chambers and is not recommended for use with 5.56 ammo. Stick with commercial .223 and you'll be fine.
No it is not. It is made at the Barnaul plant and they no longer use corrosive primers.
Depends. If you mean the Ruger Mini-14 or Ranch Rifle, yes, you can. It is chambered for .223 and 5.56x45 ammo. If you read the owner's manual (available on the Ruger website) it will tell you that on page 13. The Target Model is ONLY for .223. Of course, the 6.8mm and the Mini-30 use different ammo entirely.
The standard 5.56 mm cartridge is centerfire. There IS an adaptor to permit the use of .22 LR rimfire ammo for training.
From SAAMI: With the appearance of full metal jacket military 5.56 ammunition on the commercial Market, it has come to the attention of the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) that the use of military 5.56mm ammunition in sporting rifles chambered for Caliber .223 Remington cartridges can lead to higher-than-normal chamber pressures and possible hazards for the firearm, its user and bystanders. Tests have confirmed that chamber pressures in a sporting rifle may be significantly higher in the same gun when using military 5.56mm ammunition rather than commercially loaded Caliber .223 Remington cartridges, according to SAAMI. SAAMI points out that chambers for military rifles have a different throat configuration than chambers for sporting firearms which, together with the full metal jacket of the military projectile, may account for the higher pressures which result when military ammunition is fired in a sporting chamber. SAAMI recommends that a firearm be fired only with the cartridge for which it is specifically chambered by the manufacturer. yes, the military size is the same as 223 ammo, although powder loads may be higher in the military ammo