Thanks eeryone.



bpjack wrote on Oct 21^st, 2025 at 7:38pm:



Jack, 
I cheat on the forearm barrel inlet.  Since I have a mill, I machine the bottom flat close to the width of a flat at the small end of the barrel, where the forearm stops.  It’s deep enough so the sides can be trimmed down to where I want the finished forearm.  The side flat width is also milled to the small end barrel total width.  I then cut the 45 degree sides with a router bit, connecting the bottom to the side flats.

The bottom flat of the inlet is done at this point, I have a perfectly flat bottom on the forearm.  I then inlet the forearm down on the barrel until I get full contact on this forearm flat by the barrel and then stop.  I then inlet it back until contact with the fame in made.   

Most of this could also be done with a router.
Bob