Eddystone Caliber is.....

.30/06.

Didn't mean to start WW3. I was thinking when I asked if there were some markings hidden somewhere that could quickly confirm caliber as I did not want to close the bolt on a live round.
Went down to shop, pulled a bullet out of an '06 chambered, fired, ejected. Shoulda thought about it sooner.
Thanks to all.
Greeker

"the difference between the almost right word and the right word is like the difference between a lightning bug and a lightning bolt" - Mark Twain.