Turn up velocity for Wildcat.

Forums PCP Airguns Turn up velocity for Wildcat.

  • Views : 566
  • Link

    k_h_d
    Participant
    Member

    My 22 wildcat is only reading 860 fps with JSB 18 grain.  Is that typical for that pellet?  Can the velocity be increased to the 920s by tightening the Hammer spring and will it still get a nice shot string and grouping at a higher velocity?

     

    Link

    Westwind
    Participant
    Member

    k_h_d

    Yes it’s easy to adjust but you need to heat up the block before you try to
    turn the adjustment screw or you will strip it out its kinda thin. Take the
    stock off and it’s in the very back of the gun. You can look in thru the hole
    and see the spring behind it. Don’t be in a rush heat it up slowly till it turns
    easy. When you get it where you want it put some blue lock tight on it so
    it won’t move. Do this at your own risk of stripping it out.
    Mark

    Link

    fz1yamaha
    Participant
    Member

    I took a 10mm deep well socket heated with a torch ,set it on the hammer spring adjuster a few times -I had the action aiming down,with the allen key through the hole of the socket ,the block never got over 130f on my thermometer ,learned the hard way -they are soft .buy one, and use one, for a back nut. AoA sold me a old brass style without the stem ,I like them.Go slow heating and increasing speed dont let locktite shavings fall down in once it frees up lay it on its side and clean all of it out..dosent take much to get on the other side of the springs use- kinda acts like a rabbit punch then,looks right if ya only shoot afew shots crony ,as i backed out fps increased then slowed to the fps i liked. The I checked again and it is a lazer again

    Link

    Dartagnan
    Participant
    Member

    “fz1yamaha”I took a 10mm deep well socket heated with a torch ,set it on the hammer spring adjuster a few times -I had the action aiming down,with the allen key through the hole of the socket ,the block never got over 130f on my thermometer ,learned the hard way -they are soft .buy one, and use one, for a back nut. AoA sold me a old brass style without the stem ,I like them.Go slow heating and increasing speed dont let locktite shavings fall down in once it frees up lay it on its side and clean all of it out..dosent take much to get on the other side of the springs use- kinda acts like a rabbit punch then,looks right if ya only shoot afew shots crony ,as i backed out fps increased then slowed to the fps i liked. The I checked again and it is a lazer again

    
Good idea on using a second adjustment nut as a ‘back up’ nut.  I have noticed the nut does turn (ccw) after several shots.

    +1 coming your way buddy!

Viewing 4 posts - 1 through 4 (of 4 total)

You must be logged in to reply to this topic.