I like to tinker, play mechanic and don't want to collect guns that cannot deliver what I am expecting.
I got my first PCP in .25 cal - the most difficult to learn how to tune and mod. And I made it through alive

and feels soo good.
At my bench, shooting rings at 100 meters, with pellets !!!
btw, pellets were around for many decades but these never meant to be shot to 100 meters. And we can do it if we do a bit of homework.
I tried the other 50 meter target lane several times. For me 50 meter or shorter is boring distance.
The monthly average group size (from thousands of shots) is about 1.25" MOA, some days all stars aligned for subMOA and some days a real clusterf@ck we don't want to talk about.
With a PCP all it takes to turn couple knobs, one for hammer spring one for valve stop one for Reg and I can change the speed in 5 fps increments if I want to but a 10 is pretty norm .... What is a Standard Deviation if you do your own reloading?
Rimfire cannot reload, right? But can you do resize ?
Edit: I wanted to get one of those pumpers for my travels up North, but don't like long guns.