Probably 1.0-1.5 MOA, depending on WHICH Ruger rifle.
Ruger's web site has extensive sn data.
Yes.
If the ruger site comes back up, you can check there sn database
Not currently cataloged.
100-1000 USD depending on specifics
1-1.5 MOA with the right loads
580 is the newer version of the Mini 14 Ranch, minor engineering changes, improved accuracy, etc.
22-250, 220 Swift, 243, 6mm Rem, 25-06, 308. Other versions of the 77 were in MANY other calibers.
dear me,,, 6mm, sigh!
In all likelhood, one of the bolt action pistols in a rifle caliber, such as 6mm. That holds the accuracy record for a rifle, and would likely do so for a pistol.
It was bought in 1971, i dont know much about it, it was handed down to me by my great grandfather. it looks to be in good shape but i cant find any info on it on the internet. its my first rifle.
6mm is equal to a 2 gauge.