A 770 is a slightly updated 710 which wasn't a very good rifle. They shoot pretty good, but reliability is iffy. The Marlin XL7 on the other hand is a great rifle in the same price range. Or if you want to spend significantly more, get the Remington 700 and don't look back, you will not be disappointed or be left wanting for more. As for stainless or blued, you will pay more for stainless but it requires a bit less care and stays looking good for longer. At least that is my experience with it.