[from occupied ga]

50 lbs of tannerite would make big boom but the ONLY way to detonate it is a supersonic rifle round.

Not true, an ordinary detonator (blasting cap) will set it off or if you want to improvise, a couple of grams of lead azide will also work

[mylife]

blasting cap = supersonic impact, and they are highly regulated.

Can’t get them at the hardware store