I have several batches of E. European 7.62X25 that I shoot in aCZ52
These run 1575 to 1650 on the chrono. HOT! but safe as far as I can tell.
I didn't fight to defend your freedom so you could vote to take away mine.
"A man who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself.
John Stuart Mill."