I think the pre war M70 .375 H & H in discussion is listed on GI #101899119. If so, it is a pre war .375 & with a nicer piece of wood than most post war guns (as is typical for pre war guns) but it has plenty of issues.

The pictures aren't great but in the close up of the right side of the receiver you can see plugged holes in the right rear side of the receiver just below the bridge where it looks like someone had mounted peep sight on the opposite side from what would be correct. This, plus what appears to be pitting under the reblue, Williams rear sight base replacing the original Winchester base, muzzle brake & G & H side mount installed with just the 3 screws & not using the taper pins makes me think Bubba has been at this rifle.

It is a Tilden safety & that was a common addition on pre war M70 rifles when someone wanted to mount a scope & have easy access to the safety.