I prepped 100 virgin Peterson cases for loading.
I expanded the necks to push the imperfections to the outside, turned the necks to .014 , expanded and uniformed the flash holes, resized the cases with an SAC sizing die with .283 bushing (sets the neck tension to .002), chamfered/deburred, and finally pin tumbled the cases to clean. I got 15 120g Partitions loaded over 6.5 Staball (44.5-45.5g) to test.
I expanded the necks to push the imperfections to the outside, turned the necks to .014 , expanded and uniformed the flash holes, resized the cases with an SAC sizing die with .283 bushing (sets the neck tension to .002), chamfered/deburred, and finally pin tumbled the cases to clean. I got 15 120g Partitions loaded over 6.5 Staball (44.5-45.5g) to test.
