Poor Mans Headspace/ Shouler Bump Guage
Saw this on accurateshooter, TECH TIP–Poor Man's Headspace Gauge « Daily Bulletin
thought it was interesting, tried it on a 338 Lapua case with a 40 S&W case and i think it worked well enough.
"Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth."
You know you are shooting long range when the CheyTac team that's always on History Channel ranges the target and starts sobbing.