The current pulses I captured for these tests wasn't quite as boring as for the Estes igniters. They always went open circuit when they fired making the pulse shorter. Here is a sample plot from trial 2:
And this is all of the ones that fired as a single mess:
Once again my initial guesses were not that great so it took a while to home in on the region of interest:
The final estimated mean was 263mA with a standard deviation of 20.4mA. The all fire current (99.9%) for a 100ms pulse is 333mA.