Long action.
Ruger American Rifle short action calibers (.243 Win, .308 Win, 7mm .08 Rem, 22-250)
Long or short refers to the length of the cartridge the action will handle. .308 (parent case of the .243) is a short action.
Long
Long action
Short
Short
Long action. .308 and shorter- short action. 30-06 and longer, long action.
Short
Short action.
Short.
Short action
The 223 is considered a Short Action rifle.