Did the Mini-14 Have a 223 Rem Chambering Period? ~ Never Ask Again!
The Ruger Mini-14 was designed from its 1974 inception to chamber both .223 Remington and 5.56mm NATO ammunition, contrary to common belief. Early models did not explicitly mark '5.56' on the receiver due to the unpopularity of metric measurements in the US at the time. The only exception is the Mini-14 Target Model, which is exclusively chambered for .223 Remington.









