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  1. M

    Hatsan AT44 Power Tuning

    I have a Hatsan AT44-10 QE Long .25 that I'm trying to tune down the power. I've tried using Airgun Web's method on YouTube (https://youtu.be/QrNgOqfIqLs?t=4m). That method didn't make a difference from what I can tell. Then I tried this method (https://youtu.be/ag2ziKYvnqA?t=36s). The problem...
  2. M

    Vague maintenance instructions

    The manual for the Hatsan 150 says to "oil you air rifle every 250 shots". I dunno exactly what that means, so I tried searching the web. The info I've found for Gas Pistons were mixed opinions. Some people would say to only oil the breech seal. Some people would say to open the breech and oil...
  3. M

    New Hatsan 150

    Bought a Hatsan 150, I shot about 25 pellets through it, then did a barrel clean to get all the factory gunk out. I had noticed a very mininal increase in power, and an increase in accuracy after cleaning. That was going to be the only cleaning until I felt the accuracy was dropping. After about...