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I've seen some chrono results of 1500 from a 4" revolver, so unlikely that you're going to see much more than that from a 5" auto. The auto barrel includes the chamber, so a 5" auto is effectively the same as a 4" revolver, with a bit of pressure loss from the gap.
You can drive a 135gr bullet at well over 1400 from a 5" 10mm, so not much to choose.
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Im sorry but your wrong. I have the posts with pictures on this forum. I get 1800 give of take FPS from my 6 inch Coonan.
http://thefiringline.com/forums/showthread.php?t=495750
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Shot placement is everything! I would rather take a round of 50BMG to the foot than a 22short to the base of the skull.
all 26 of my guns are 45/70 govt, 357 mag, 22 or 12 ga... I believe in keeping it simple. Wish my wife did as well...
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