Git to shoot my new to me Dragon today. It shot a lovely little group at 25 yards. Three feet to the right of the POA!

A closer look shows the barrel is canted to the right, possibly by the front block on which the barrel leans heavily on the left hand side. These holes are original to the guns manufacture, but with the front block removed it is clear that the barrel wants to be well to the left of the centre.

I can probably fix by enlarging the blocks fixing holes so it can be fitted where I want the "top" to be, but I am concerned that in 24 years the problem hasn't been apparent to its original owner.

Opinions?