75-160 USD or so
You will have to call Ruger to find out.
Ruger has sn data on their web site.
Ruger has extensive sn on their website. The sn you list is not on it. You will need to call Ruger. 400 or so
Depending on condition, type of barrel, sights, etc, anywhere for $150-$300.
No
Value is driven by exact model (you did not say) and condition (you did not say). So we can't really say. It could be $100 for a well worn Mk1, or $450 for a like new MkII with a select barrel and sights. Stainless or blued also makes a difference in price.
if condition is good 4 or 500
50-250 or so
$425 on gunsamerica.com
Try including the caliber, barrel length, sights (if any) and serial number (minus the last three numbers, which should always be indicated by x's).
The original P85 had a design flaw which had the potential to result in an accidental discharge. The Mk II corrected this design flaw.
I just sold mine. It had a Bushnell scope, it was a Ruger M77 30-06. It had a soft case and a shoulder strap. The gun was in very good condition with only a couple of minor scratches. I sold it all for $400.00