When looking up loads for the M79 I was struck that a shotgun is a higher velocity gun.
12ga is about 1350 feet per second with #4 buckshot.
The M576 round is a mere 885 fps with the same shot.
12ga is firing 24 pellets instead of 20 as well.
I can see the argument for using a shotgun instead of the blooper for close in work.
#4 buck was used extensively in Vietnam.
Yup, the 870's we brought along were super useful and reliable... The 203's were great for grenades, flares and smoke...
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