You are probably right- thought I saw some Tannerite blocks for exploding rifle range targets on sale at Gander whatever a while back--With all the crazy pipe bombers extant, even selling reloading powders might be a tad "risky" today-- I still have a few BP 12 gauge paper shotgun loads- fun to shoot in a SC event, so I have been told. I'll do some more EOD recon and see if I can figure it out- No spark, so must be some form of concussion detonator-- No "sympathetic detonation" either--we shall see- always like a good research quest. Foxy

"The field is the touchstone of the man"..