We used to do similar test with Exhaust sounds from cars, motorbikes, Ambulances Etc. Think of the guy on a Harley, You Don't hear him coming but you sure hear him going. It's a matter of where you are stand and the angle of the sound wave hitting you. Standing behind the guy with the meter the tester is shielded from the sound wave. Put the dB meter at a 45 degree angel to the barrel about 10 feet away and see what you get for a dB reading. You'll be amazed at the difference in reading.
@otahu26 You're probably right, but the interest for us was to measure the sound at the ear of the shooter. because in 90 % of the time the hunter is alone and is the only person ( him and the game) who hear the sound. thank you for your comment. Antirecul.
I don't think hand-held meters are very accurate for measuring gunshots. I believe OSHA estimates gunshots to be about 140 dB. I did a similar experiment with an AR-15 and the top measurements I made with a hand-held decibel meter was just under 110 dB and the values fluctuated considerably.
Still, even if the absolute value of the sound level is incorrect, it would seem like the comparison should at least be somewhat valid. Merci!
@DrThunder88 you're probably right for the measurments accuracy, but we did the same measurments 12 times with and without the MB and we have always 4/5 decibels less with the MB.
We used to do similar test with Exhaust sounds from cars, motorbikes, Ambulances Etc. Think of the guy on a Harley, You Don't hear him coming but you sure hear him going. It's a matter of where you are stand and the angle of the sound wave hitting you. Standing behind the guy with the meter the tester is shielded from the sound wave. Put the dB meter at a 45 degree angel to the barrel about 10 feet away and see what you get for a dB reading. You'll be amazed at the difference in reading.
otahu26 6 months ago
@otahu26 You're probably right, but the interest for us was to measure the sound at the ear of the shooter. because in 90 % of the time the hunter is alone and is the only person ( him and the game) who hear the sound. thank you for your comment. Antirecul.
antirecul 6 months ago
I don't think hand-held meters are very accurate for measuring gunshots. I believe OSHA estimates gunshots to be about 140 dB. I did a similar experiment with an AR-15 and the top measurements I made with a hand-held decibel meter was just under 110 dB and the values fluctuated considerably.
Still, even if the absolute value of the sound level is incorrect, it would seem like the comparison should at least be somewhat valid. Merci!
DrThunder88 1 year ago
@DrThunder88 you're probably right for the measurments accuracy, but we did the same measurments 12 times with and without the MB and we have always 4/5 decibels less with the MB.
Thank you for your comments.
antirecul 1 year ago