Originally Posted by
Merc
Big Ed,
Thanks for the info. The stiff extraction I'm experiencing from the expanded 303 cases which, according to the link, is one of the signs of high pressure. As previously mentioned, I'm using starting loads BUT neck size only. These expanded 303 cases have been fired and reloaded multiple times which has probably caused or allowed progressive body expansion to reach its current size. Would you agree that a better test might be to evaluate a new or full length sized case for symptoms of stress, i.e. expansion, extraction stiffness, etc. after it's been fired only once?