FX Impact MK2 - Hammer spring adjuster wheel keeps moving on its own when I am shooting.

[Forestgump]

Ok so I bought a Impact MK2 and when testing some ZAN slugs I realised that the "Hammer Spring Adjuster Wheel" keeps moving back to towards MIN when I am shooting. Has anyone had this before or know what could be causing it.

Thanks

Luigi

 

[villaman]

Ok so I bought a Impact MK2 and when testing some ZAN slugs I realised that the "Hammer Spring Adjuster Wheel" keeps moving back to towards MIN when I am shooting. Has anyone had this before or know what could be causing it.

Thanks

Luigi

Is the screw tight on the wheel or the tiny Allan screw needs adjusting in , is there a drop in fps

 

[trickie]

If I remember correctly, there is a small ball bearing on the adjustment wheel side off the screw, if that’s missing you’ll get this result

 

[villaman]

If I remember correctly, there is a small ball bearing on the adjustment wheel side off the screw, if that’s missing you’ll get this result

Yes indeed