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Making Rifle Barrelsby Machinery Magazine
Synopses & Reviews
More than 90 different operations went into manufacturing barrels for the British Lee-Enfield rifle during WWI. The first third of this booklet shows in detail how the Brits did it-- the machines, techniques, and tricks necessary to drill a long, deep, perfectly straight hole into very hard steel, straighten the tube if necessary and then cut rifling grooves. It's heavily illustrated with photos (not great quality unfortunately), and drawings revealing the drills, reamers, laps, relieving cutters, thread millers and the multitude of other tools used.
Then it's "Drilling, Reaming and Straightening Rifle Barrels" as it was done in another factory. Again, it's wall-to-wall illustrations of barrel drilling machines, jigs for sharpening the special drill bit, Pratt & Whitney reaming machines, straightening techniques, and so on, all the way to polishing the barrel. You even get formulas for solutions to brown the barrels.
Finally you get two short illustrated articles, "Machining Rifling Bars on the Bench Lathe", and "Drilling a Long Blind Hole".
Obviously, during WWI there were many articles on manufacturing ordnance, but almost all of them were concerned with speeding up production. These four articles are the best for us since they cover how-to.
Machining a rifle barrel is quite an achievement. Here's how it was done almost a century ago on relatively simple equipment.
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Engineering » Metal » Metalwork