Walmart has ADL's for $377. w/scope, peddle the scope for $30. and you have a Rem 700 for $350. How much is the SPS worth over a new ADL's is up to you, same barrel and action only the stock and bottom metal are different.
You should expect 1 1/2" or less but who knows, somebody else got rid of it for some reason. A good maximum range is as far as you can shoot and keep the FIRST shot in a dinner paper plate ( 9" circle) from field positions for deer , elk and bear, the cartridge has more than enough power.
Sorry if this sounds like I'm raining on your parade, I try never to buy a used rifle without trying it first, being able to return it or getting it at a good enough price that I can afford to work it over.