I have 2 air rifles. Both are Diana RWS’s.

Model 34 .177 1000 FPS
Model 54 .22 recoiless - 900 FPS. Heavier than my M1 Garands
Both are single pump/lever action.

Brought them back out a couple of years ago when .22 ammo disappeared off the shelves. Model 54 drops a rabbit or squirrel with no problem. I am now back to my 10/22 and Browning .22 auto for plinking.