
i was cleaning a nib NV getting it ready to take shooting when i noticed the cylinder locking bolt is leaving marks at the top of the locking notch ...
(the gun in the picture is NOT the gun it is an image i had from an earlier NV)
the red area on the photo is where the bolt is leaving impact marks deep enough to see with 2 cylinder rotations...
anyone have any ideas what to do ?
it has actually left visible deformation on the edge of the locking notch and a drag mark all the way around the cylinder...
the drag mark is perfectly centered ...
i have read that the NV's have a predisposition towards odd timing problems ...
any help appreciated ...
thanks...