Never used anything but glue myself but did get a gunstock that had been glued and a woodscrew drilled from inside literally pinning the two seperate pieces together . Very well done and very strong repair with the glue . Had the thing a while before I realised the thing had been repaired so whoever did the work was good .
Would have been a bit of a faff trying to drill from inside the action inletting - not to far otherwise the tip would have poked out into outer surface and the chequering area . Guessing to avoid too much stress on the wood , hole was drilled with drill bit oversize for that specific screw size used . By that I mean the screw tightening in did not make more problems by cutting into fractured weak area .
Screw was countersunk in the inlet are very well too to avoid any snagging on the airgun mechanism when re-installed .