Carbon outlaw, nice application of technology. Butlersrangers asked me about building a Cummins device. I said that technology today could make a lot better device for a lot less time and energy. Your set up is about 1/3 the way there. A triggered laser and recording setup and you have the perfect low budget "Cummins device".
You could fire 1000s of practice shots without using a grain of powder. Also be able to analyze your technique in a way hard to do any way else.
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