In an attempt to salvage some 200 cases of loaded .243 Winchester (not military possible crimped) bought in a garage sale and somewhat corroded-I began the decapping and noticed many of the primers were fragmenting, the bottom separating and leaving the primer walls still in the pocket-I devised this process:
located a drill bit larger than minimum primer diameter as shown on SAAMI drawing but smaller than max diameter of pocket then ground bit flat on end (effectively an end mill) and drilling the primer out. Once cleaned I finished with an RCBS large rifle pocket scraper, an RCBS case reamer-lightly cleaning the pocket radius and then verifying the pocket dimensions to SAAMI with dial caliper.
So far so good but it is laborious and if ANYONE can advise a better, more accurate, less labor way I would love to hear it.
Thanks
located a drill bit larger than minimum primer diameter as shown on SAAMI drawing but smaller than max diameter of pocket then ground bit flat on end (effectively an end mill) and drilling the primer out. Once cleaned I finished with an RCBS large rifle pocket scraper, an RCBS case reamer-lightly cleaning the pocket radius and then verifying the pocket dimensions to SAAMI with dial caliper.
So far so good but it is laborious and if ANYONE can advise a better, more accurate, less labor way I would love to hear it.
Thanks