A Raging Emo said:
When people say "Clip" instead of "Mag". A Clip is what holds the bullets, like you see on Light Machine Guns for instance. A Mag(azine) is what feeds the bullets into the gun.
Actually, while there are several types of clip, none of them are used for LMGs - you're thinking of a belt (although the Minimi is designed to take ordinary box mags in a pinch). There are various kinds of belts; back in the day, they tended to use cloth belts, which weren't terribly good; nowadays, most machine guns use disintegrating-link belts, where the belt is made up of hundreds of links (each connecting two cartridges); as each cartridge is loaded into the breech, the links it joined together are released and you just end up with a pile of brass cases to one side and a pile of links below the gun.
Clips are things like the the clip used in the M1 Garand (which, I suspect, is what led to the term being used interchangeably with "magazine"), which actually continued to hold the rounds until it was ejected with the last case. In the rest of the world, it generally refers to stripper clips, where a sprung backplate holds a number of cartridges (usually ten per clip) in a frame so they can be easily loaded into a magazine. You just put a loading frame over the mag's feed lips, put the base of the clip against the loading frame, and push the cartridges down into the mag. Then the clip is removed, and you've got ten rounds loaded in about a second - much easier than loading them individually.
