The do-it-all airgun.
Open sights....scope....whatever. Tune it up for hunting, tune it down for targets. Not too heavy, but heavy enough to shoot very easily.
Positive locking underlever so you can fit a sling for hunting. Use mine for everything.
Can't think of anything you can't do with an HW77K.
If the house was on fire, I'd grab this one and let the rest burn..
HW77K MK2 25mm piston with oring piston seal: