Box mag experiment to feed nearly 80 rounds per second

This is just an experiment to modify a MAG bog mag to feed BBs at 80 RPS. The hi-torque motor is from Pololu #1163. It turns 249 RPM with a lipo unloaded. The box mag feeds 20 rounds per revolution, so that comes out to be ~80 rounds per second, but I think it's a little less than that with the load of the BBs. This was done per a customer's request for a high ROF box mag.