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.

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

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

Interesting range brass pickup - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

9mm major brass. Keep it or chuck it? - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

I have determined that 9mm Makarov is a communist plot to frustrate reloaders. - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

I have determined that 9mm Makarov is a communist plot to frustrate reloaders. - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

9mm Major Brass Life - Open Pistols - Brian Enos's Forums Maku mozo!

Decapping process? - Page 3 - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

too much crimp? - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

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

Reloading help for USPSA - 9mm/38 Caliber - Brian Enos's Forums Maku mozo !

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

Best 9mm Brass by Headstamp - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

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