Project I have been working on last weeks.
Shortening Barrels that where not allowed to be pulled from the receiver.
No picture of disassembly and shortening the barrel by 4 inches.
All work was done on Teach in lathe.
Picture 1: Catshead was installed, complete action including barrel was inserted.
In the back of catshead was a pilot that was pre-aligning the action in the Catshead.
Picture 2: Inserting grinded rod with 2 bronze bushings in the barrelbore and adjust to 0 on 2 spots.
Picture 3 Front view.
An Aluminum bushing was machined fit tightly around the barrel so no markings would be on the barrel in the visible aerea.
The 2nd set of screw pressure points was under the hand guard. So no problem there.
A 3rd set was in the rear only to stabilize the receiver, NOT to adjust the barrel.
All bolts where bronze tipped.
Contouring in several steps – Video
http://s1300.photobucket.com/user/Gunny ... 7.mp4.html
http://s1300.photobucket.com/user/Gunny ... 5.mp4.html
threading video
http://s1300.photobucket.com/user/Gunny ... 6.mp4.html
Final contour with M15x1 – Crowning was done in seperate step, but no video or pictures
Good weekend Gents
Gunny