Reply To: After about 100 shots the POI is shifting…

Forums PCP Airguns After about 100 shots the POI is shifting… Reply To: After about 100 shots the POI is shifting…

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“Kgb1024”With action in the stock and AT at 180 bar, loosen all 4 hex bolts till loose, turn down all bolt to it bottoms out on it’s shoulders. Pull barrel off the action about 2″ and slowly insert back, a properly aligned barrel will have an even clearance entering the action with an even O-ring compression. If miss aligned the barrel will hit the lip of the action then you force the barrel in, now the barrel has more metal contact on one side and is more subject to POI change.

Place alignment screw in place making sure it bottoms out into the shallow hole on the barrel.

Back out the alignment screw by 3/4 turn CCW.

Pull barrel forward and lightly tighten the hex bolt closest to the receiver first, this will give you that .5mm clearance needed.

Remove alignment screw and apply a criss-cross tighten sequence to about 10-12 in-Lb.

The even torqueing will minimize the horizontal shifting.


Thanks for the info.
Any pictures or video?

Thanks,