Reply To: Gamo Whisper Cat Ballistics
It’s common for heavier pellets to hit higher than lighter ones in springers. If I remember right it has to do with recoil and barrel harmonics. I’ve often found different brands of pellets shoot left or right of zero.
It kind of sounds like your Gamo is due for a rebuild, good luck finding a replacement spring and seal kit! Five years of heavy use will fatigue most springs. You kind of need to think of springs and seals like tires on a car, they wear out with use.