I was playing with my sons qb78D..
I was having accuracy problem a while ago so I re-crowned it... made a huge difference so been doing some testing when I can at 10m to see how it is doing.
Tonight it was shooting bulls eye every time.... Put it down and picked it back up and 1/2 to the right..... slowing going back to center. I played with things for a bit and realized the barrel band was allowing the barrel to shift. I tightened it as much as I dare but still having slight consistency problems if I touch the barrel.
What does everyone normally do to fix this permanently?
The gun will hit a fly at 20 yards almost every time when its on... but a little bump or site it down leaning against the barrel and it will shoot to the right or left....
just need to fix the band to the tube, set screw (non pointed) or can try an adhesive...
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