Oh it's not all that hard to learn where on a military base such things are stored. Now for a wizard to get their hands on such would be even easier. They apparate onto the base then to the storage area. A few quick spells later and they apparate out with their loot. I've read something similar to this. The trio proved that Purebloods have no common sense period! Think of it this way. If you sent three snatcher teams to the exact same location within four hours wouldn't you notice that none of them returned? In that story they just kept coming regardless of how many they lost. Hold one! I believe I made an error concerning that story! It was only Harry and Hermione. MoooRon having abandoned them again. So anyways, in something l9ike two days they just about killed every Death Eater in England and Europe. Like in the first world war the grunts had to charge head on into massed machinegun fire. But anywho,I agree. Had H/Hr been truly allowed to use their brains in the books, Riddle would've been toast much sooner. Can you just imagine the horror of the Purebloods if at the battle of Hogwarts they faced Harry and several others with modified miniguns? Lighter, cooler, unlimited amo, little to no recoil, working on magic instead of electric motors? Combine that with denser bullets or explosive rounds and your poor little Death Eater army isn't gonna last very long. Add in a few heavy mortars firing fragmentation round and the DE's will really enjoy themselves! Of course in a case like that Hades or Satan would be dancing with joy at all the new playmates his demons would have to enjoy. :)