Ive been following this thread and have modified my Accuras BP like Ron did ,I havent shot it yet. I tried putting the oring into the primer seat and the primer was pushed up pretty high, I tried to close the breech and it didnt want to close completely and I didnt want to force it .Im curious to see how you make out with this,if you have to drill the pocket any to utilize the o ring in the Accura.