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165 db LCpk is a good estimate for the muzzle blast 1 m in front of the barrel of a shotgun. However, outdoors, it's going to be closer to 140-150 measured at the shooter's head. There is a significant asymmetry in how the muzzle blast propagates.



1m in front of the barrel of a shotgun, I'd hearing loss is the least of your worries!




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