Alternate solution to HW scope stop pin hole deformation

[cbf123]

I recently rebuilt my HW98 with a new spring to bring it back to factory power (it had been running around 6 ft-lbs).  Previously I hadn't been using the scope stop pin, but with the increased power I thought it might be necessary, and I didn't want to risk damaging the holes the way I'd seen online.

I decided to replace the little pointy set-screw in my Hawke mounts with something a bit more substantial.  I bought an M5 cap screw and wrapped some tape around the threads to protect them, and chucked it into a drill.  I then used a belt grinder to reduce the thickness and the diameter of the cap to match the diameter of the hole and the thickness of the compression tube.  There was a bit of trial and error here, finished diameter is a hair bigger than 6mm.  I then cut a slot in the other end to allow the use of a screwdriver to adjust the projection once mounted.

I then needed to make a recess in the base of the mount to allow for actually fitting the mount to the dovetail ways on the gun.  Lacking a milling machine, I chucked up a carbide-tipped router bit in my drill press and ran it at 2500rpm.  It worked nicely, thought I was slightly off-center due to eyeballing everything.  Good enough to do the job though.

Once the dovetail was engaged lightly I then screwed the stop pin down into the receiver hole and tightened everything up, making sure to align it all as near to exact as could.

It seems to have worked, we'll see how it holds up long-term.

[anuthabubba]

Nice work.

[Motorhead]

Excellent ...