Has anyone seen headstamps with CBB or SBS? They have a NATO symbol and the primer pockets are crimped. I bought 1K of once fired LC(supposedly) from Wideners and these were mixed in with them. They seem to be top quality but I can't seem to find an exact match to these headstamps on TFL or anywhere else. Any thoughts would be appreciated.
Update, I was able to confirm the SBS headstamp as Santa Barbara Systems from Spain but still no luck on the CBB. My best guess is Centurion?