Measures
throat erosion for .30-06 caliber 03/A3, Win. M-70 and Rem. 40-X rifles, and .300 Win. Mag. caliber Win. M-70 and Rem. 40-X rifles.
Big Book Catalog, Issue:65, Page:482
Law Enforcement / Police Store, Issue:02, Page:039
SPECS: Steel, 2½" long.