I got the metal 5.56 linked ammo belts in the mail today. I'm disappointed that they're a little too long to fit the feed ramp or ammo boxes of the Tamiya .50 cal mg. In addition to that, the links are kind of too big and clunky-looking, and there seems to be too much space between individual rounds. I do not have the patience (or the eyesight) to modify each of the individual pieces as the gentleman on the 1/6 forum did.
I have a 1/16 Swift Boat kit that has a twin .50 mount on top, and wanted a really nice set of ammo belts (because they're so visible up there). I will use these for it, but I wouldn't use them for our tanks. Here is the link to the PCF kit:
http://www.harbormodels.com/site08/i...atrol_info.htm