A 788 in 22-250 was my first centerfire rifle back in the early 70s. Wish I still had it. I shot many coyotes and, if I remember right, 5 mule deer with it. I loaded 38gr of H380 and a 55gr Speer bullet. It was extremely accurate. I had a 3x9 Tasco on it. For several years it was my only rifle and I put a lot of rounds through it. It would easily handle fairly hot handloads, but that load (3-4 grains under max) was really accurate. It's a strong action - check out all of those locking lugs - and I never had any trigger problems.
$250 sounds like a great deal. Have fun with your fine rifle.