:? While I do not have the fireball info you ask for I can tell you that the fireforming and caselife issue's with the k-hornet are a load of crap from people who must not know what they are talking about. Simply put it is so hard to fireform k-hornet that you have to go buy a factory loaded hornet round, chamber it, and actually fire it, oh and then you are done, not that hard afterall. Anyway I have had good luck with caselife as well as using my k-hornet contender to take a few yotes.