Having owned an 80 from 1982-4 as my rabbit gun, unusually in that era .177" and excellent for the purpose both open sighted and later, Tasco scoped, then fallen as many did for the 77 and got rid, it didn't occur to me to have another, until....
Trumpetier produced for sale a mint 1981 .22" at Nov '16 B/Bash.

Handling one was a treat after 30yrs so I bagged it.

Not so mint now after thousands of pellets and many strip downs but what a rifle.

It became horrid to shoot after my initially effective strip, clean & moly.

Next, home made piston sleeve from Brut deodorant. Later, TbT kit which took a lot of fitting, then collapsing coils of spring the rifle came with.

Shoots really sweetly std stroke JSB 16gr, effortlessly precise, beats everything else I've got.

I think I've quite by accident and in stages hit upon an excellent set up, one I doubt I could reproduce in another gun, or even this if any parts go.

I never minded the weight as a lad either, it probably helps the shooting, and in summary a good looking, well made rugged workhorse that well merits its status.