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I just made my first batch of No11 caps using the EPH 20 non corrosive formula. I used two different loadings for the caps. One is level the cup with the powder then compress with a 1/8 inch punch. The second is using the small end of the powder dipper furnished by .22 Reloader, which produces a lesser charged cap. That is compressed with the 1/8 inch punch as before. The beauty of this is the compound is not explosive at this stage. You then add one drop of 50/50 water, 70% isopropyl alcohol to activate. Allow this to dry for a couple of days or use a dryer for a couple of hours. The cups were made using the Tap-0-Cap tool from Forester Products, this tool is not made any more but a similar one is available from .22 Reloader. The first loading were very loud, the second ones were noticeably quieter but still fairly strong.
So now to find a charge somewhere in between. And perhaps adjust the mix a little.
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