I don't recall where I originally found these numbers, but it looks like the Moruga scorpion chilli ties civilian pepper spray for capsiacin content.
15 Million SHU Pure Capsaicin
5.3 M SHU Police-Grade Pepper Spray
2 M SHU Typical Civilian Pepper Spray
And the Carolina Reaper beats civilian pepper spray by 10%.
(summarizing parts of the first post)
2.2 M SHU Carolina Reaper at around 2.2 M
2 M SHU Moruga scorpion (the hot pepper institute)
1.46 M SHU Trinidad Butch T Scorpion
1.3 M SHU "Naga Viper" (UK)
> 1 M SHU Bhut Jolokia, or ghost pepper
