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4 of 4 people found the following review helpful:
xtreme primers won't seat
June 25, 2016
David from Fallbrook, CA United States
I have a lot of military cases all of them are swaged with a RCBS staging attachment. I am priming on a Dillon 550B. About 10% of the primers will not seat and are sticking above the bottom of the cast, no matter how hard I press they won't go down. Switched to tulammo primers 100% seat same when using CCI 41. Another thing I notice is the extreme primers start to mushroom on the ones that won't go all the way down, the cup edges are very sharp. I won't be buying anymore of these.