I agree with you on the smaller cal. pellets which are harder to hold. When I was woodworking and hand sanding I found it especially hard loading my TX 200 Sanding made by skin dry and hard to hold a round. CrowI found the .177 pellets were harder to hold/load than the .22. I also had some .22 pellets available when I got my first pellet gun which was a Benjamin Trail NP .22 model. The HW95L .22 has been an excellent rifle so far and both my wife & I enjoy plinking from the back deck. I can recommend the .22 caliber for an air rifle as the pellets are readily available in a wide selection from most sources. https://www.airgunmegastore.com/0-22-1/
The R9 is a beauty. CrowThe 20 is definitely a challenge to feed if you shoot often. I'm a fan of the caliber in 15+fpe springers. My Rx1 was a Lazer beam in 20 once I worked it out. After covid hit I couldn't afford to work out my R1 in 20 caliber so I converted the gun to 22. It's loopy but at least I can feed it.
Personally I think bigger calibers have better shot cycles but I prefer flat trajectory. I prefer the flatest trajectory possible while retaining good manners. My 20 caliber R9 is IMO the best blend of power, ballistics and manners.
Ymmv
I really like .25 cal. I have a 77, 80, 90 and a 97 in .25. Looking for a 98 and a 95 - R9. Good luck CrowI have never owned one in .20 caliber. Everything I have is either .177 or .22 caliber. I prefer the .22 the most. I have been thinking about a springer in .25 caliber, but have not got around to it yet.