fyi
I got a demo how to properly mix Tannerite. The teacher was the owner of
www.armthepopulace.com a long-time Tannerite customer.
Pour out approximately 1/2" to 3/4" of the white component into a spare container. Now there is a small airspace at the top of the bottle.
Using a dining (not measurement) tablespoon, add a high-rounded spoonful of the grey component to the bottle. It is easiest to do half a spoonful at a time, due to the small top on the bottle.
Cap and shake the mix until it is 100% uniform grey. Any visible white or off-white streaks is not acceptable, ignition can't be counted on. Substantial (2-5 minutes) shake time was needed to achieve this.
Dunno how you guys would transfer the successful mix to smaller containers. Due to the need for a severe impact to set it off, my ---guess--- is it's safe to cut off the top of the bottle to pour into film cans.
Also, when properly mixed a .308 is enough to set off Tannerite.
Hope this helps.