There are a very large number, and a complete list would not be feasible. But some examples can be given. While the .223 Remington is dimensionally similar to the military 5.56x45 cartridge, the two are not the same. A 5.56 rifle may chamber a .223 cartridge - it is not recommended to try firing 5.56 ammo in a rifle with a dedicated .223 chamber.
The AR-15 and variants and clones, Ruger Mini 14, and Kel Tec SU16 are some more common examples of rifles which can chamber the .223 Remington cartridge. The ones listed have a 5.56x45 chamber, although Target models of the Ruger Mini 14 have a dedicated .223 Remington chamber.
Variants of rifles such as the Winchester Model 70, Remington 700, and Ruger No. 1 have been made with dedicated .223 chambers.
The 5.56/.223 Remington rifles can be. Other calibres cannot be, unless the upper is replaced.
Not without modification. Some 5.56x45 and .223 Remington rifles have a device available for them which allows them to fire .22 Long Rifle rounds... typically, the device replaces the bolt carrier group.
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.
Let's see... Remington makes a variant of the 700 chambered in .223, I believe the Ruger M77 is available in .223... not 100 percent certain about the Winchester Model 70, but I believe it is or was available in .223. .223 Remington ammunition can also be cycled through rifles chambered for 5.56x45, such as the AR-15, Ruger Mini 14 Ranch (the Target models have a dedicated .223 chamber), variants of the Daewoo K2, Kel Tec SU17, some AK-based rifles, etc.
No.
A .357 Magnum can shoot .38 Special rounds as well as .357 Magnum rounds.
No. If it does not have 5.56 on the barrel then use .223 ammo.
Most AR-type rifles are chambered for the 5.56x45 cartridge - the standard cartridge used by NATO (and also by several non-NATO) forces for their military's assault rifles. They can also chamber the .223 Remington cartridge, although a firearm with a dedicated .223 Remington chamber should not be used for military 5.56x45 ammunition.
Browning BlR
The Ruger Mini-14 Ranch Rifle marked as .223 can safely fire the .223 AND the 5.56 NATO military cartridge. The Ruger Mini-14 TARGET model should only fire .223 ammo- no 5.56 mm
yes your model 70 in that caliber is a short action.All rifles that shoot a loaded cartridge that is 2.80 inches in length is considered a short action.
No.