ok, directions to sight in a bsa scope....
first, remove the scope from the gun.
next, dig a deep hole.
now, throw the scope in the hole and fill it back up.

This will probably be as good as it gets for that scope.
but in all seriousness, I think most BSA's are marked with arrows? but just do like 13point said and you should be good. It might hold up well for you without much recoil, but dont put it on a big gun, you'll wish you hadnt!!
-Jake