So I bought a little Saturday night special on a whim. It is a Raven mp-25. I know it a cheap little gun and not to depend on it for anything. I did figure it would be fun to shoot at the range, until I went to buy some ammo. At my local Meijer: (Meijer is a little cheaper than Walmart on some calibers around here) WWB 100rd of 9mm for $19.99 WWB 50rd of .25ACP for $19.99 I get that 9mm is much more common. But double the cost? Is there some reason beyond being less common to make it twice as much?