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Old January 17, 2013, 05:16 PM   #15
Buzzard Bait
Senior Member
 
Join Date: June 25, 2008
Location: Republic of Texas
Posts: 327
sonic boom

If I read right first dull boom shots were from a three inch barrel the sharper sound is from the 6 inch my thought is the six inch got enough velocity to hit sound barrier, went supersonic your hearing the sonic boom while the three inch barrel produced subsonic velocity. Hope your hearing it threw ear muffs or plugs
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