clayshooter I make money at gunshows most of the time and get to keep alot of the guns I wanted.Here are some basics I look for.On the winchester model 70 look for smooth bolt throw,buy a bore light,they are cheap and I bring magifying glasses(Reading glasses)With the bolt back look in the chamber throat with bore light in muzzel,look for small cracks in the chamber throat,If ok look for carbon or copper build up in throat,most can be removed with the stinkingst stuff in the world,sweets #762 I think it's called,just ask for sweets copper remover and get a good one piece rod for cleaning and bronse bristle brushes to get the embedded copper and carbon.Look for good trigger release and look for even slight buldges in the barrell.I even look at the locking lugs and make sure they arn't rounded,Make sure the stock isn't cracked and make sure it fits well,good luck friend.Drop-Shot