i have a glock 34 and it had that problem with AE and Sellier and Bellot in the beginning, but my spring has lightened up now that it's not new and now i can happily shower my range buddies standing next to me with shells again

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if you want to trade springs, i'll trade with you and you can see if it works better for ya...........if not, trade back...... my buddy's glock 34 is brand new and i'm pretty sure his still sends the occasional shell into your face/ on your head.........
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"In certain, extreme situations, the law is inadequate. In order to shame its inadequacy, it is necessary to act outside the law. To pursue - natural justice. This is not vengeance. Revenge is not a valid motive, it's an emotional response. No, not vengeance. Punishment." ~Frank Castle aka The Punisher