Reliable in my handguns, not so reliable in my ar9 - Hornady Critical Defense 9 mm Luger 115 Grain Flex Tip eXpanding Centerfire Pistol Ammunition

After quite a bit of research on EDC defensive rounds I settled on getting a few boxes of these to do some testing and comparison. In both of my handguns these cycle perfectly, but my AR9 didn't like them much at all; repeatedly failing to fully cycle. This same AR9 cycled multiple other 115gr rounds just fine, so there's just something in this particular design that makes them not get along very well with this particular weapon, without further tuning. I don't say this to knock the round at all, it worked perfectly in my EDC guns and earned my top choice for my EDC ammo. I mention this only to underscore the importance of carefully testing ammo in your specific weapons -- just because it works for someone else or in a different gun of your own doesn't mean it'll work for you and all your other guns. So while I've chosen these for my EDC guns I'll have to either tune my AR9 for these or look for a different defensive round for that particular platform.