Making a power increase in a Hatsan Galatian by exhaust valve spring adjustment 02 02 17

As you will see. Adjusting the exhaust valve spring will definitely increase the power of the Hatsan Galatian after the installation of a regulator. In the end it wasn't enough for me, but is a worth while fine tune to gain an extra 0.6 to 1.00 foot pounds energy. The problem with installing the Altaros regulator in a Hatsan is that is lowers the power by around 2 foot pounds to what it was before the installation. The easiest way is to adjust the hammer spring, or increase the transfer port, of which both are hard to get to, due to anti tamper restrictions, even though these are not the law. It's your responsibility to make sure that any changes that you make to your rifle does not send it over the legal limit for your Country, so a chronograph is essential.