Hi , i have an early HW77 with the ball type underlever not the late push button type, it is the early one without the beartrap mechanism which according to airgun world is the sought after one. it is a .22 with a BSA Essential 3-9x40 scope with parallax adjustment putting out a full 12 fpe with superfields. This is a very tidy rifle, resealed and serviced by me with proper Weihrauch seals not the cheap ones. It shoots lovely( the rats dont like it) I have an AA TX200 hc FAC rated now so this is just sitting in the cabinet unused.
If you are interested and require pics let me know.