Case separation. Have you seen this before?
Case Head Separation 1911 Firearm Addicts
Incipient Case Head Failure
Beginning of a case head separation? : r/reloading
Imminent case head separation?
45 ACP Case Head Separation
Continuing on the theme of case head separation. : r/reloading
A subtle sign of risk of case head separation
Impending Case Head Separation
Overcoming 9mm Case Head Separation On The Clock - Pistol Caliber Carbine - Brian Enos's Forums Maku mozo!
Case Head Separation and Why it Happens
Impending Case Head Separation