Hearing damage is cumulative to exposure as well and 120db is definitely high enough that if you were exposed to that in a work environment, the health and safety authority in your company would order you to wear ear protection.

I've got damage from a 22-250 going off and suffer from tinnitus in my right ear. Doc says any more exposure in that ear will make it worse. So for me, these devices are a definite no. Bad enough being on the back of an open air cab of a fire truck and having the damn federal siren screaming - I put in ear plugs now when I get on for a call.

so is jugglez going to get thyes new toys?

I've had a chance to see this device at ShotShow where Simon was proudly showing it off.

It's really nicely made and the report is pretty good. It didn't seem too damaging. I've heard dryfiring paintball guns which sounded a little harsher. The GSG-01 offers a sharp pop that I wouldn't consider to be overly damaging.

I do note that the Youtube vid showing the dB measurement had the grenade pointing right at the meter microphone at a very close distance (around 5cm when it went off). 125dB is a high noise intensity, but a distance of 5cm is very close for noise measurement. In open air measurements, dB decreases by 6dB for each doubling of distance.

The standard for most equipment noise measurement is 3' (IRC...) which is about 90cm which is 18x further than a 5cm measurement. I'm not sure how the applicable it is to reduce by 6dB for doublings from closer distances like 5cm, but if it applies well, a measurement at the standard 3' distance would come out at under 96dB (18x is greater than 4 doublings of distance 2^4=16).

At 5cm with the opening pointed at your face, the GSG-1 is a bit louder than a car horn at 3' or the racket at a rock concert. At 3' the bang exerts similar sound pressure to driving down the highway with your top down on your 'stang. I have no idea about the directionality of the GSG-1. It's got one exit port so I suspect that it will have some aspherical intensity distribution.

Properly specified dB intensity ratings should be stated with the measurement range.

To answer myself => RWA selling @ $99

Can this use the same adapter used on the other grenades?.
I'm not to keen on buying a whole pile of powerlets when I can
use what I have already.

For the sake of interest, I have a magazine at home (Special Weapons I recall), that had a couple articles on 9mm suppressor testing for pistols, and suppressed all sat in the 128-132dB range for sound level, but around 140dB unsuppressed.

airsoftparts.ca just got them in.

http://www.airsoftparts.ca/store2/in...0267dc11dbbfce

If you look at the video on the Mad Bull site, the grenade is right next to the dB meter as MadMax said. That'd mean you'd only get the full 120dB if your head was right next to it. I'd like to see a measurement maybe standing a foot away from it or something which would be the worst-case scenario for indoor.

Given the C$145 pricetag, I'm not sure how keen I'd be using these outdoors -- and I'm not fully convinced they'd be safe indoors (I'm not fully convinced they'd be safe outdoors, for that matter)

I suppose some impartial testing needs to be done.

Link to instructions vids on the Madbull site (found on AirsoftParts) http://www.madbullairsoft.com/Englis...roducts_id=174

Man, I'm glad I didn't sell my Peltor 6Ss. They actually might come in handy now!

if its co2, then cant the c02 pressure be regulated if its too much?

This IS why we have co2 regulator for our Madbull 203's right?

Just checked the videos...

I would not be afraid of having that go off close to me...

If it was not flying out of the screen for a good 2 seconds...

Anyone tought about it so far...

It lands on a hill close to you... You jump to cover, but the top of the grenade is pointing right at your head...

Too bad the day was hot and you removed your helmet... Now you have a piece of aluminium stuck in your head and a nice brain trauma.

Just what would be the point
 

of using this outside... What are going to do "pretend" it stuns you?

Really what good is it if it does not actualy stun you?

its nothing more than a gimic that will be soon ignored by players.

in a word useless outdoors

and from all the talk here.. useless indoors .. because no one would be willing to be in the same room with it.

so in a word.. useless....

you do not need to use powerlets with that CO2 adapter. we have installed that directly on a 20oz CO2 tank and it has worked flawlessly. You basically take off the powerlet cage and mount the adapter with regulator/gauge right on your tank.



Agreed! In the video, the demonstrator says to charge at 800 psi but only fill for 2-3 seconds. Doing that does not give you the full 800 psi but fills short of that amount.

When we fill our nades (XM108HP, XM204HP, XMPB4) we fill them for much longer. Basically set the regulator to whatever psi and watch the needle.

So why not just charge to a lower psi setting like 400 or 500 psi?

Great questions.

Would be wonderful if Simon from Mad Bull read these threads...

Defininently interested in getting one...i wonder if i brought a CO2 cartrige to my local store if they would give me a live demonstration :D.