All that is 100% ture, Gary, including the last part
.
My associate with the .380 does PSD work. He swears by it.
I think that the cyclic rate is actually closer to 1300 rpm with standard ammo.
The ones used for competition are apparently "tuned" for a reduced rate of about 800 rpm.. these guys can right their name with 'em....
I'm closing this thread, as Daren has posted just about the same question in this forum under the heading MAC 10/11...
see ya there.
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-Essayons