I cain't say for sure, but this is most probably a forend problem! Does anything rub against it (action parts). Bedding could be a solution.
The barrel deal is not it, they are cold hammer forged. Your barrel is OK!
I don't like and have little experience with semi's. But I know there is also som'ting called "firstshot syndrome". Pistolshooters complain about this I've heard: When the action operates under manual force, the locking is a little different, than it is when it is operated by recoil/gas...but you should find a better gunsmith than the one you got it from! If he sells you a gun he'd better know how it works!
The barrel deal is not it, they are cold hammer forged. Your barrel is OK!
I don't like and have little experience with semi's. But I know there is also som'ting called "firstshot syndrome". Pistolshooters complain about this I've heard: When the action operates under manual force, the locking is a little different, than it is when it is operated by recoil/gas...but you should find a better gunsmith than the one you got it from! If he sells you a gun he'd better know how it works!