Several things can be wrong here, and I wouldn't consider calling Taurus until you have exhausted all of them. As olfarhors suggested, new shooters tend to have more problems, so his advise to have an experienced shooter shoot it is a good one. The cleaning issue has been mentioned, but new or used, hopefully you took the time to field strip it and give it a good cleaning/relubing inside, and do clean the magazines inside too. If you didn't do that, please do so. Ammo can be another issue. My OSS hates the Tul Ammo (steel cases), so if you have not shot different brands, do so. The magazines might need to be tweeked a little bit for reliability. Sometimes, simply spreading the feed lips a small amount can make a big difference. Mine had issues at first, but I narrowed it down to the magazines, spread the lips a little, and the issues went away. You need to shoot it some more and try the things mentioned above. The good thing about Taurus is the lifetime warranty. If there is a problem, they can fix it. But if it is simply a shooter problem, there is nothing they can do for that. Make sure you have a firm, two handed grip on the gun, arms fully extended and turn your elbows out to help with the recoil. Limp wristing is a common problem with new shooters and a good firm grip is needed when shooting the gun. The 24/7 OSS is a great gun and you will end up loving yours once you get it dialed in.