What is the value of a used ruger 10-22 sporter in 95 percent condition?

The Sporter is the high end 10/22, and you mightbe able to get $250-$275 for a used one in the condition you described, although, realistically, most potential buyers would probably prefer to pay the extra $25 - $50 for one new in the box, and you should be prepared to reduce your bottom line if you need to sell it quickly. $200 - $225 would probably be a reasonable asking price if you needed to sell it quickly, while most gun dealers probably wouldn't offer more than $150 - $170 for it.