You will have to contact Ruger or look it up on their website since you don't provide the full sn.
Ruger has a sn function on their web site.
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
You will have to call Ruger.
Go to Ruger's web site. They have sn data you can look up.
It would help if you gave the model number.
The Ruger .22 Long Rifle pistol, commonly known as the Ruger Standard or Ruger Mark series, was first introduced in 1949. The specific year of manufacture for a particular serial number can be determined by consulting Ruger's serial number lookup tool or reference materials, as they provide a detailed breakdown of production dates based on serial numbers. If you have a specific serial number, I can help guide you on how to find its year of manufacture.
Ruger has sn data on its website.
580 is the newer version of the Mini 14 Ranch, minor engineering changes, improved accuracy, etc.
Ruger will send you a manual if you request one.
Semi automatic rifle made by Ruger.
Go to the Ruger website- look under customer service- data- rifle- your model, then llok for your serial number.
Your series 197 Mini 14 was built in 2004 (or later) by Ruger according to their own website. Look up when your rifle was built there. I purchased a series 197 Ranch rifle in 2005 for around $550.00.