Free: Contests & Raffles.
Nightforce or Seekins.
Check out Warne, if you want something a little more reasonably priced and still great quality. I've switched most all of my rifles over to Warne bases and rings recently. Made in the USA, in fact right next door in Oregon. Customer service is great too, any technical questions just email or call and you'll get a prompt response.
I have a Savage LRH .300 win and I am picking up a 5-20x56 SHV to put on it. I have never mounted a scope before, and I am looking at recommendations on what scope rings to get. The gun came with a base attached, but I'm not sure which base it is, I will post a picture of it when I get home.