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Rifles, Reloading, Optics, Equipment
Suppressors
Silencerco harvester300
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<blockquote data-quote="egl52" data-source="post: 1557085" data-attributes="member: 33950"><p><span style="font-size: 15px">It's true that you can get hearing loss from noises over 85 decibels, but the length of time you're exposed to those sounds is what matters. A gunshot is only a split second. So a few shots from a suppressed rifle that are under 140 decibels are considered hearing safe. If you're going to shoot more than a few shots, then you still need hearing protection. And if you shoot a suppressed AR-15, the sound at your ear will be over 140 even if the sound at the muzzle is under 140, because of the sound coming out of the ejection port, so you should always use hearing protection on an AR-15 or other semi-automatic rifle. There's a helpful chart I found here: <a href="https://www.noisehelp.com/noise-dose.html" target="_blank">https://www.noisehelp.com/noise-dose.html</a></span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px"><strong>Maximum Recommended Noise Dose</strong></span></p><p><span style="font-size: 15px"><strong>Exposure Levels</strong></span></p><p><strong>Noise Level (dBA)</strong> <strong>Maximum Exposure Time per 24 Hours</strong></p><p>85 8 hours</p><p>88 4 hours</p><p>91 2 hours</p><p>94 1 hour</p><p>97 30 minutes</p><p>100 15 minutes</p><p>103 7.5 minutes</p><p>106 3.7 minutes</p><p>109 112 seconds</p><p>112 56 seconds</p><p>115 28 seconds</p><p>118 14 seconds</p><p>121 7 seconds</p><p>124 3 seconds</p><p>127 1 second</p><p>130–140 less than 1 second</p><p>140 <strong>NO EXPOSURE</strong></p><p><strong></strong></p></blockquote><p></p>
[QUOTE="egl52, post: 1557085, member: 33950"] [SIZE=4]It's true that you can get hearing loss from noises over 85 decibels, but the length of time you're exposed to those sounds is what matters. A gunshot is only a split second. So a few shots from a suppressed rifle that are under 140 decibels are considered hearing safe. If you're going to shoot more than a few shots, then you still need hearing protection. And if you shoot a suppressed AR-15, the sound at your ear will be over 140 even if the sound at the muzzle is under 140, because of the sound coming out of the ejection port, so you should always use hearing protection on an AR-15 or other semi-automatic rifle. There's a helpful chart I found here: [URL]https://www.noisehelp.com/noise-dose.html[/URL] [B][/B] [B]Maximum Recommended Noise Dose Exposure Levels[/B][/SIZE] [B]Noise Level (dBA)[/B] [B]Maximum Exposure Time per 24 Hours[/B] 85 8 hours 88 4 hours 91 2 hours 94 1 hour 97 30 minutes 100 15 minutes 103 7.5 minutes 106 3.7 minutes 109 112 seconds 112 56 seconds 115 28 seconds 118 14 seconds 121 7 seconds 124 3 seconds 127 1 second 130–140 less than 1 second 140 [B]NO EXPOSURE [/B] [/QUOTE]
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