101 years ago, when this original 9.3x62 Oberndorf Sporting Mauser left the factory new, the 9.3's had surprisingly thin countours, .570" at the muzzle:
**Do the math on that: .204" barrel thickness at the muzzle. Surprising.......I know.
My factory Ruger M77 RS 35 Whelen measures .560" at the muzzle. Makes for a tidy package in a High Tech Specialties stock.