We always talk about how good stuff was back in the old days but oftentimes, our memories are clouded.
Yesterday I went through 200 pieces of LC 5.56 from 1975. Once fired, still had the crimps. Could still make out the annealing coloring. Knocked out the primers and swaged the pockets. Ran the pocket uniformer through each piece and it just barely touched the bottom of every last piece. Sized them and took them over to the Possum Hollow trimmer. Again, it just barely touched the mouth of each piece. Chamfered them up and figured I would weigh them. 190 of them went from 90.5gr to 91.5gr. The worst were 90gr and 93gr. Ran the Forster outside neck turner over each one and they all cleaned up with the lightest cut. Really didn't even need it. Finished up with the Lee collet die. After all of that, I measured runout and the worst was .002. There was one thing that I was surprised to see. 5 or 6 of the flash holes were off-center enough to notice. Didn't cause any decapping problems but I saw it when uniforming the primer pockets.
Blew them all out to 223AI today and did not have a crack or split. I'll probably go ahead and anneal them for good measure.
Man, I was amazed. Government contracts must have been very strict back then to maintain that kind of QC.
Yesterday I went through 200 pieces of LC 5.56 from 1975. Once fired, still had the crimps. Could still make out the annealing coloring. Knocked out the primers and swaged the pockets. Ran the pocket uniformer through each piece and it just barely touched the bottom of every last piece. Sized them and took them over to the Possum Hollow trimmer. Again, it just barely touched the mouth of each piece. Chamfered them up and figured I would weigh them. 190 of them went from 90.5gr to 91.5gr. The worst were 90gr and 93gr. Ran the Forster outside neck turner over each one and they all cleaned up with the lightest cut. Really didn't even need it. Finished up with the Lee collet die. After all of that, I measured runout and the worst was .002. There was one thing that I was surprised to see. 5 or 6 of the flash holes were off-center enough to notice. Didn't cause any decapping problems but I saw it when uniforming the primer pockets.
Blew them all out to 223AI today and did not have a crack or split. I'll probably go ahead and anneal them for good measure.
Man, I was amazed. Government contracts must have been very strict back then to maintain that kind of QC.