I cover the entire stock with wide, 3M Blue Painter's Tape and using spray adhesive, mount the stock to a heavy piece of cardboard. I use cardboard shims and a trysquare to plumb the butt against the bandsaw table, gluing them in as required to plumb the butt.
Then I cut through cardboard and all, completely preventing any splintering or random movement caused by slop in the jig.
But first I insure the cuts are exactly what are required by working the shooter through several hundred rounds with a gun having an adjustable stock. POI's are POI's. Borelines are borelines. Cast is cast....etc...the gun doesn't have to be a double.
