American's buy guns based too much on the outside of the gun. By that I mean perceived condition and looks. The way to buy a gun is by the insides, barrel and action. BSA actions are tried and true. Where you need to look at is on face and the barrels. Have the wall thickness measured, check that the chambers are still 2 1/2" not eased out to 2 3/4", measure the chokes. If the walls are thick, the chambers original and there are no obvious flaws or mechanical problem the gun looks like a fine shooter.

You do know that appropriate 2 1/2" loads would be best used in this gun. Even in guns proofed later for 2 3/4" I prefer 2 1/2" loads to keep stress and recoil down on my shoulder and the guns stock.