No, the M14 and Ruger Mini-14 are completely different firearms. The Mini-14 was designed for the civilian market as a .223 caliber rifle based on the looks of the M14, which fires the larger 7.62x51mm round and has fully automatic capabilities. They do both however have a gas-operated rotating bolt action.
The AR-15 uses a direct impingement operating system, whereas the Mini 14 uses a gas piston system based on the M14 rifle.
580 is the newer version of the Mini 14 Ranch, minor engineering changes, improved accuracy, etc.
You have it backwards. The M14 rifle shoots the 7.62 NATO cartridge.
The M14 was never factory made as a semi-auto.
Not really. Both weapons may be similar in animations, but they have lots of differences. - The M14 is an assault rifle, while the M21 is a sniper rifle. - The M14 has a 20 round magazine, while the M21 has a 10 round magazine. - The M14 deals 50-40 damage, whild the M21 deals 70 damage. - The empty reload time of the M14 at 3.06s is slightly faster than the M21's, at 3.1s. - The M21 has a lot less recoil than the M14.
@ 4kilos
Semi automatic rifle made by Ruger.
Chamber pressure is determined by the cartridge, not the rifle.
It is actually the Mk 14 EBR (Enhanced Battle Rifle). It has a 'Mk' designation because it is in service with the United States Navy. The M21 is a sniper weapon system introduced during the Vietnam War based on the original M14 battle rifle.
Good
The M14 was originally produced for the U.S. military by four manufacturers: TRW, Springfield Armory, Winchester, and Harrington and Richardson
The Ruger Web site says the Mini-14 Ranch Rifle and the Mini-14 Tactical Rifle, can be used with either the .223 or 5.56mm round: Mini-14 Target Rifles ONLY accept .223 Rem. ammunition. 5.56 NATO cannot be used in this model. Probably due to tighter chambering dimensions for accuracy.