Did you clean the barrel with with the barrel paste that removes all burrs? Also did you adjust your hammer spring for power?
Update:Tried mailing Hatsan USA, its been 9 days now and not even a response.. Tried Hatsan Europe.. No Response.. So i got in touch with Airgun Depot and they said that i could have my money back, a new gun or change the gun into a different model if i wanted too.Unfortunately there is a 120$ price tag on shipping the rifle back to the states, and i have to apply to get a tax refund for the rifle.. so i don't loose the 200$ Tax i payed when i imported it.Taking things into consideration i decided that i would just keep the rifle and buy the parts i need.So now i have a Lothar Walther match grade Barrel incoming in a few weeks, and i am going to buy a Robert Lane regulator and set the rifle to 18.5 ft\lbs and then tune the internals to match the regulator.That should give me a increase in shot count as well as being acceptable power for 55yds+ backyard plinking. Airgun Depot thought that my pellet drop or lack of power was beacouse of the barrel being damaged. Cant really tell until i get the new barrel and get to shoot it over a chrony. Also got my self a decent moderator from Airgun Artisans they are legal and freely sold on the open market here in Norway so now my rifle is almost noiseless and very backyard friendly, only sound is of the mechanical action. So im confident my Galatian will perform great with some tweaks.