Dillion Aero has the contract for the M-134 Minigun now. Funny how the show I watched on the Military Channel kept his face hidden during the segment on the Minigun but listed his company on the end credits!
7.62 X 51. I visited the factory when I was last in Arizona. Unfortunately it was after hours and the whole minigun area was locked up tight. It was neat visiting the factory store and seeing the production line for the reloaders.