100-500 or so
Well the mini 14 comes in stainless steel. That is made by Ruger. There is also a Ruger 22 cal. stainless steel rifle.
250-425 USD
Not sure but I have a 181 model that was produced in 1979 and it is of the stainless flavor....
I like the stainless steel Ruger mini 14. You did not say what cal. or rifle or pistol.
100-1000 USD or more depending on specifics
The Ruger website, under Customer Service, has a downloadable owners manual for your Mini 14.
580 is the newer version of the Mini 14 Ranch, minor engineering changes, improved accuracy, etc.
$350 to $800, depending on WHICH Mini-14, and condition.
If you go to Ruger's website you can download the manual for your mini 14 for free. It tells how to disassemble your gun in the manual.
You can contact Ruger's customer service to find out.
Ruger has sn data on its website.
You will have to call Ruger.