I buy sheets of compressed 3mm thick cork,a few ft square at a time,does a few thousand for £5.Originally Posted by gtpkeeper
I made the cutter but a bought one should do the same.
In a drill press set so it doesn't quite go all the way through.cut about 15 then pop them out.
take mabe 5 mins to do 100.
around 20 grns equivalant by volume 777 (13.5 ish grns by weight) with one wad in an old uberti NMA.
That was measured though to give 2mm compression with the lever to the stop so that would be the minimum charge,
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