I'm sorry I can't find the original post again, but I recently downloaded a
Bob Swinney
I am far from expert on deep hole drilling, but I considered the purchase worthwhile. The person seems to know what he's talking about. His stuff makes much more sense than some other books I have seen on the subject.
The article you are looking for might be
Randy
Actually the tape centers (pardon the pun) on a home-built specialized machine to do barrel drilling, reaming, and rifling. It is not intended to be a commercially viable machine, rather more of an experimental, homeworkshop hobby type device. But the instructions are clear, and detailed, and the price is very worthwhile for what you get. If your desire is to make a few barrels for yourself, and friends, by all means, get the tape. I bought it just to satisfy my curiosity, and will probably never build the machine.
Intrepid
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