Curious how you got yours doing 30fpe? man that is some kinda punch! mine right now is at 910 with 7.9s but have some more room for spring spacing. I lucked out on this ones bore, very smooth at least compared to my Hatsan 85 that has a rough bore and leads up as you describe.
Hunter, is your gun stock? If not let me know what has been done okay?
Shooting the thing today can easily hit pebbles out to 30 yards or so as long as I shoot offhand.
Too much shake to rest it at all
Love to hear more about your 125,