I HAD one of those... and I accidentally broke it today! I will be buying another one to replace it.
And yes, I'll be working towards finding the minimal foil. This is for the steel caps (and later the aluminum tube when it arrives). For now I will
focus on processing my shell casings. Punching out the primer is harder than I thought, since I don't have reloading tools (yet). So I drilled through
the back. I noticed that the 7.62x39mm is MUCH thicker than the 5.56x45mm! I broke a drill bit in the process! Another tool to replace! 
| Quote: | | Well done on the tests so far, what was the mass of EM in each of your test caps? |
I'm actually quite proud of my latest test overall. If the new mostly bottomless steel caps can exceed that, then I think I would have achieved my
goal of making a blasting cap that is on par with the commercial or military caps. When I read the Improvised Munitions Handbook section on detonators
(and I should have memorized it better, since it had some information that could have made my life much easier) the warning at the end really
captivated me 'Detonator has considerably more power than a military blasting cap and should be handled carefully'. I don't know why, but just that
made me really, really want it!
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