Sorting 9mm brass - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

I’m having some issues with certain headstamps in my 750 so I’m going to start sorting headstamps. These were labeled “IK21”. What are the other headstamps I should look out for.

Case Gauging Results - Bulk Loading 9mm - General Reloading - Brian Enos's Forums Maku mozo!

First Ka-boom shooting 9mm major - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

Broke casings in chamber? - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

Mysterious overpressure - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

Sorting 9mm brass - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

Frustration Level EPIC!!! 9mm muffin top issue needs resolution!!! - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

Don't shoot .38 Short Colt in an S&W 9mm 929, trust me on this one :) - Revolver Forum - Brian Enos's Forums Maku mozo!

9mm vs. .38 short colt in a S&W revo - Revolver Forum - Brian Enos's Forums Maku mozo!

Stepped brass - Page 2 - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!