Can I assume there is some life left in this barrel?

[HDSledge]

You'll get a better reading with a M2 ball round. I'd venture there's' plenty of life left in the barrel.

I'll post a pic of the group when I finally get out there to shoot it.

re. the M2 ball round: I'm not sure where to get one. Will a regular 30-06 work or is it too different?