I am not ‘THE COLLECTOR’ I am a collector, I have S&W from the old days, the S&W 38 Special used large pistol primers.
The CCC head stamp is Cascade Cartridge Company. Then there is CCI.
Doing what I do and preventing a friend getting tennis elbow caused by pulling bullets with the kinetic hammer, I talked him out of what was left of 40 Western 30G1906 rounds with additional rounds by Peters. Browning also marketed ammo with their head stamp.