Guess these case came from someone who has access to Military Ammo in 9mm. Today I was sorting some 9mm which was given to me and found about 10 CBC cases which had a Military Crimp and wouldn't pass my Small Primer Go-No-Go gauge. I got out my RCBS Crimp Remover and removed the Military Crimp. I also ran into one Winchester case which had a Military Crimp and two R-P cases which had Military Crimps. I have no idea that those companies has contracts with making ammunition for the military. Don't know how old these cases are but they has Military Crimps