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Make a Factory Quality 9mm Rifled Barrel in your Kitchen Using Salt Water and Electricity (ECM) -
Back in March 2017, I reported on a proof of concept attempt to create rifling grooves using a process known as Electrochemical Machining (ECM). Fast-forward to 2019 and a decentralized collective of gun designers operating under the group name 'Deterrence Dispensed' have perfected a method of...
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