They hold 47 or 49 rounds although the 49 round pans can have feeding problems. I ended up with a couple of 49s out of 18 pans and mine functioned fine. They can be a pain to load but I built a loader that makes it relatively easy and I can load one in a minute or so. I figure with 18 loaded pans the kids can keep up the loading for a good while before I get them all emptied. At that point we fix bayonets and make the ultimate sacrifice for the Motherland!