Tell us more about the rifle, wood stock? what condition, barrel etc...anything labeled on the gun/barrel etc...

Is it chambered for .270wby? or .270win?
The .257, .270, and 7mm Wby all use the same case, that may give you an idea of the performance. I believe the 7mm wby beats the 7mm Rem. Mag.

I think the .270WSM may hurt new .270wby sales, but is one of wby's more popular rounds.

Either way it'll be a good setup in either of those chamberings.

I'd probably pass on the scope, but I'd have to look at it.
Probably just buy a newer one of my preference.