444 Marlin Case Bulge?
10 mm brass bulge
Kaboom: The Consequences Of A Blown-Out Case
Winchester Limited Edition WWII Ammo 12 Ga 2-3/4 M19 Brass Hull 00
Steel VS Brass Ammo - Wideners Shooting, Hunting & Gun Blog
Brass Shotgun Shells
Remington Model 11 12 Ga bulge on brass
12 gauge shell Identification
brass 12 gauge ammo - Trapperman Forums
8mm headstamp ??
Science of Shotgun Slugs