What pellets where you shooting out the .25 ?
I'd contact Charlie at Georgia airguns. He has them and hes the one that power tunes Crickets so maybe he can do that for you.https://georgiaairguns.net/I have a .22 coming tomorrow that was on sale at UAG!
You're gonna love it I think! He's not too far from me. I saw on his site that he said the .30 Uragan was his new favorite air gun