I have tried measuring case capacity in 9mm and there is considerable variation in various brands of brass. That variation is one of the reasons one should always start near the minimum powder amount recommended when reloading. Primers also have variations. Compare Rem, CCI, and S&B. I stopped using S&B because their primers are no the same size as the major brands. Those aluminum cases are good for ONE loading. Fortunately, scrap aluminum has a lot of value. You may be able to salvage some of your expense after shooting once.
Ed C