Not sure on case life, but brass factory made by Hornady. Some on trade me a few weeks back for $55/50. Zmax 500 packs are $130, so if you get 5 firings per case then you are looking at about 62 cents per round, so a bit more than hmr but from what I have witnessed about twice the effectiveness. CZ527 in 17HH will be the same price as other 527's which means a chunk more than a 452...
45SOUTH has one on a ruger action and also knows of a few others so will have a much better idea of what to expect with cases etc
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