Is there a way to tell if a rifle has been fired? I understand they are before they are proofed but afterwards, is there a way to tell? Does it even matter on a rifle that is in as new or perfect condition?

I ask because i just came across a 1965 M70 in 375 H&H with the original box. When i look closely, the lands and grooves look like they are still blued and there is no thinning at the crown or any evidence of copper anywhere. The rifle looks new and has never had a scope mounted on it.

Thanks for the help,