I have a hatsan 125 in .25 with a over sized bore. My tuner says it's losing velocity because of how wide the barrel hole is. Do you have any pellet recommendations for this. I want a wider diameter skirt not the head. Hatsan will not replace the barrel. Apparently this is a big issue with hatsans. I've had the gun for 4 years and I like it. Just looking for some ammo to get full potential of power and accuracy with the gun. It's accurate it's just losing about 80fps because of the bore diameter. domed and pointed pellets are my ideal type of pellet but I won't be picky if someone can provide a good pellet.