100-550 or so
The best you can afford. Leupold is always a good choice.
100-450
100-550 usd
50-500 USD or so
175-250 dollars.
100-400 USD or so
Ruger has extensive sn on their website. The sn you list is not on it. You will need to call Ruger. 400 or so
Any .308 Winchester ammunition.
The base gun is around $600 new. Here's a link to one of the first websites that came up:http://www.ableammo.com/catalog/product_info.php?products_id=110209Depends upon the condition of the stock, scope, and barrel. A professional gunsmith can give a good estimate.
0-400 USD depending on condition.
Remington 700 308?