The Ma Deuce is a nice weapon and trying to set the headspace and timing on one when you've misplaced the li'l gunner's widget is an interesting way to pass an afternoon.
However, I prefer a round that makes a bang at initiation *and* at termination. One that's also a tad larger than the .50 cal...
Pulling both of those out of your pocket during a Hangar Tour always got the kids' attention. And showing them the gun that fired it and how it was fed always presented a nice opportunity to teach them about gearing ratios, transducers and transformers, voltage regulators and a bit of physics. Heh--and "links" meant something other than "read what this blogger has to say"...
Now, an expended 20mm shell casing is a marvelous thing. Large enough to be useful at work, either after a slight modification...
...or without. Just think artistically...
However, the ultimate use for the expended casing was to turn it into something functional in the field, especially something that would enhance certain occasions--such as those al fresco interludes involving you and your MRE...
Heh.
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