The problematic .22 Tracker

[evert]

The action is probably bent when they
Welded the trigger housing on contracting
It pulls the action into a banana.
If so make an insert on a lathe and mallet
It back to true.I did one some years back and
Gained 3.5ftlbs no other changes.

Now that is some new info, thanks!
Come to think of it, another airgunner here told me about damaging the soft tube on a Tracker, from having it inserted in a Bull-pup stock with setscrews holding the action. He fixed it a similar way to what you are describing.