Hey Dons,
I checked the bore with my digital calipers and it said it was .318.
To be honest with you, I don't plan on ever shooting this rifle. I have other rifles that I can shoot. I took it to a well respected gunsmith to have him check out the bore and he said that it looked perfect. He said that it could pass as an unfired bore.

If you don't mind, I would like to ask you a couple more questions.

I would like to preserve this rifle as well as possible. What is the best way to do this? Should I put anything on/in it? I have a very good sealed gun safe with a heating rod in it. Is this a good thing for this rifle?

Thanks for your help,
Don