I couldn't find any more clips of the QBZ 03 in full-auto. Well, more likely to be modded in a civ range than military, if the owners of the range are enthusiasts themselves.That's a possibility for sure, but how likely are we going to see modified 03s at a civilian gun range? I'll look for other clips of the QBZ-03 in full auto.
Arithmetic error when it came to the +- calculations... should be between 910-1140 RPM (1025 average) for the QBZ 03.
However I did the same process through the M16A3. Using the same method, I got 550- 720 RPM = 640 or so average, which is approximately representative. So at least we can be a bit more confident that the method I am using is accurate at least to some degree to an accuracy of within 150 RPM.