I don't know. It might be a 308. I don't have any experience with anything bigger than a 22mag in bolt actions. I'll dig it out and look tomorrowDid the 5R ever come in .30-06? I’m only aware of the 5R in .223, .308, 6.5, and .300wm.
The 5R is a solid deal in the $800-$1200 range and I’m a Remington 700 5R fanboy.