I think it was up into the 40,000 round area. We had emptied one ammo bin and had to stop to reload the bin again with belts. Caught it on the video but it wasn't running on high speed/slow motion. Dillon was a great bloke and ready to listen to any sensible comments or suggestions. Including one to cross drill the rotor to vent off gas in the event of a miss feed causing a breech explosion (once for us). I seem to remember that a replacement set of barrels was very cheap and everything was so simple. Including stripping, cleaning and assembly. A great trial and some great people. I used to sit and wonder........ what are we still faffing around with GPMG's for!