SCORE Newsletter from the Big Island (Read 2723 times)

Inspector

SCORE Newsletter from the Big Island
« on: February 04, 2015, 08:25:55 AM »
Not sure how much interest there is in this but I thought I would upload it anyway.

SCORE Newsletter from the Big Island
SCIENCE THAT CAN’T BE QUESTIONED IS PROPAGANDA!!!

dustoff003

Re: SCORE Newsletter from the Big Island
« Reply #1 on: February 04, 2015, 04:11:13 PM »
good stuff Inspector. its funny that that sound mitigation device only yielded a 20 dB reduction thats about as much as most ear plugs/muffs.

zippz

Re: SCORE Newsletter from the Big Island
« Reply #2 on: February 04, 2015, 04:25:35 PM »
good stuff Inspector. its funny that that sound mitigation device only yielded a 20 dB reduction thats about as much as most ear plugs/muffs.

20db is significant.  For gun fire, every 6db is a doubling of loudness.  So going from 146 to 126db is about 1/10th as loud.  Or vice versa, going from 126 to 146 is 10x as loud.

dustoff003

Re: SCORE Newsletter from the Big Island
« Reply #3 on: February 04, 2015, 04:30:38 PM »
20db is significant.  For gun fire, every 6db is a doubling of loudness.  So going from 146 to 126db is about 1/10th as loud.  Or vice versa, going from 126 to 146 is 10x as loud.

learn sumtin new everyday, mahalo zippz

macsak

Re: SCORE Newsletter from the Big Island
« Reply #4 on: February 04, 2015, 05:07:47 PM »
learn sumtin new everyday, mahalo zippz

the guy from that range test came to the HRA meeting in january
he's got his act together
hopefully they are successful

Inspector

Re: SCORE Newsletter from the Big Island
« Reply #5 on: February 04, 2015, 05:35:26 PM »
the guy from that range test came to the HRA meeting in january
he's got his act together
hopefully they are successful
I hope they are successful and get that range built before I move back there. I would hate to get into my retirement and not have a place to shoot.
SCIENCE THAT CAN’T BE QUESTIONED IS PROPAGANDA!!!

Inspector

Re: SCORE Newsletter from the Big Island
« Reply #6 on: September 28, 2015, 02:35:52 PM »
Here is the September 2015 issue of The Score Newsletter from the Big Island.
SCIENCE THAT CAN’T BE QUESTIONED IS PROPAGANDA!!!

GZire

Re: SCORE Newsletter from the Big Island
« Reply #7 on: September 28, 2015, 02:57:14 PM »
20db is significant.  For gun fire, every 6db is a doubling of loudness.  So going from 146 to 126db is about 1/10th as loud.  Or vice versa, going from 126 to 146 is 10x as loud.

dB is a log scale.  10 dB means upping by a factor of 10.  So doubling is actually more like 3 dB.