A .318" groove diameter isn't really all that uncommon. If the attached engineering drawing (source?) is credible, it's actually within specs. Before venturing into oversize jacketed bullets, it...
Type: Posts; User: Parashooter; Excluded Forums: Milsurp Knowledge Libraries (READ ONLY)
A .318" groove diameter isn't really all that uncommon. If the attached engineering drawing (source?) is credible, it's actually within specs. Before venturing into oversize jacketed bullets, it...