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View Full Version : Suppressors to save hearing


Ralph McLaney
03-31-2007, 05:33 AM
Some countries actually have a sensible approach to shooter safety!

"Suppressors do not favour poaching since they do not reduce bullet noise"


http://guns.connect.fi/rs/summary.html

MikeG
03-31-2007, 06:02 AM
True. There are a few things you can use lawfully-owned suppressors for, such as shooting feral hogs in Texas.

I doubt we'll see changes in this country anytime soon, though.

Can you imagine certain.... shall we say, 'shrill' .... politicians, squealing about banning terrorist sniper rifles with silencers, to save our children???? :rolleyes:

jpattersonnh
03-31-2007, 07:12 AM
Can you imagine certain.... shall we say, 'shrill' .... politicians, squealing about banning terrorist sniper rifles with silencers, to save our children???? :rolleyes:

I can hear it coming from the left coast already!! They would most likely state that it gives a hunter an unfair advantage.

Cheezywan
03-31-2007, 07:47 AM
Can you imagine certain.... shall we say, 'shrill' .... politicians, squealing about banning terrorist sniper rifles with silencers, to save our children???? :rolleyes:

How it is presented to them might be important. Something like.....We need suppressors to save the childrens hearing. Might work? Problem is, they prefer it to be thier idea. Would have to make them think "we" are against it.

Cheezywan

MikeG
03-31-2007, 09:23 AM
How it is presented to them might be important. Something like.....We need suppressors to save the childrens hearing. Might work? Problem is, they prefer it to be thier idea. Would have to make them think "we" are against it.

Cheezywan

Oooh! I like that! :D

jean1948
03-31-2007, 10:29 AM
Silencers and/or suppressors are both in a "Pandora's Box" that we might want to leave unopened so "they" don't have any more ammunition to come after our lawful and legal gun rights!

DakotaElkSlayer
04-01-2007, 06:54 PM
"Suppressors do not favour poaching since they do not reduce bullet noise"
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Hmmm....I don't get that statement? If suppressors didn't suppress noise, no one would buy one.

Jim

Ralph McLaney
04-01-2007, 07:03 PM
Hmmm....I don't get that statement? If suppressors didn't suppress noise, no one would buy one.

Jim

The suppressor only lowers the muzzle blast from escaping propellant gas. In supersonic rounds from rifles, the bullet creates a sonic boom as it passes downrange. Thus a suppressor cannot lower the noise of the bullet. Only the noise at the gun is lowered to safe levels.

ribbonstone
04-01-2007, 07:26 PM
Ture..but they are used on trans-sonic rifles for other reasons. Does deaden the gas blast from the muzzle (which is a big help in urban house clearing)...and at longer range the "snap/crack" of the bullet passing you doesn't give a good firing direction.

Won't see this come to pass. Are legal ways to own one now, at least in some states...but many states expressly forbid their use in hunting, even if allowed ownership.

MMichaelAK
04-02-2007, 11:59 AM
They are handy tools in certain applications. Pointless in hunting I feel unless you are hunting with a subsonic round and just being mindful of the neighbors sensitivity to noise.

We liked them for paintball for the same reasons the military likes them and they were according to BATF regs, legal for paintball at the time.

Ralph McLaney
04-02-2007, 04:30 PM
They are handy tools in certain applications. Pointless in hunting I feel unless you are hunting with a subsonic round and just being mindful of the neighbors sensitivity to noise.

We liked them for paintball for the same reasons the military likes them and they were according to BATF regs, legal for paintball at the time.

They are only pointless for hunting if you wear plugs and/or muffs while hunting to preserve your hearing. The point of the article reference was to protect the hearing of the hunting public.

Mr. C
04-02-2007, 07:03 PM
Cars got mufflers. Not fun but quieter. Lawnmowers got mufflers. Some things sound better loud, like a Harley. Would be nice to have the option of a suppressor when we're plinking to limit the noise and threats from neighbors. But I guess for now the noise will go on.

jean1948
04-02-2007, 08:12 PM
Are silencers/suppressors legal on anything at this time???

MikeG
04-02-2007, 08:35 PM
Federal law, yes, if you have a tax stamp and local LEO approval.

Not all states allow them, however.

The only stuff you can legally hunt with them, as far as I am aware, are vermin like hogs. That's in Texas and I can't speak for other states.

Old Ironsights
04-02-2007, 09:10 PM
Simpleist suppressor is a heavy, low velocity bullet out of a long barrel.

Perfect for small game/varmints out to 25yds (i.e. in urban zones where people get stressed about gunfire...)

kdub
04-02-2007, 09:48 PM
JDJ developed a .308 caliber cartridge named the .300 Whisper - a subsonic bullet for moderate range without a lot of muzzle flash and noise.

jean1948
04-02-2007, 09:57 PM
JDJ developed a .308 caliber cartridge named the .300 Whisper - a subsonic bullet for moderate range without a lot of muzzle flash and noise.

Could it be fired in any firearm chambered in .308?

Ralph McLaney
04-03-2007, 09:29 PM
Simpleist suppressor is a heavy, low velocity bullet out of a long barrel.

Perfect for small game/varmints out to 25yds (i.e. in urban zones where people get stressed about gunfire...)

So then the best quiet gun for dispatching urban deer would be al long barreled repeater in .45 Colt with heavy slow bullets.

So now Cowboy Action Rifles and loads can also be classified as a poor man's Suppressed Urban Battle Utility Rifle and Bullet! Everyone needs a SUBURB gun!

On the serious side, have there been any documented sound meter tests to determine the decibel out-put of a 24 - 26 inch barrel with .45 Colt Cowboy Ammunition.

MikeG
04-03-2007, 09:38 PM
I don't know, but Marshall Stanton did a lot of crop depredation (deer) work with a .357 Mag rifle, and some of his bullets.

kdub
04-04-2007, 08:38 AM
No, Jean - the .300 Whisper is a unique chambering.

unclenick
04-04-2007, 09:07 AM
. . .have there been any documented sound meter tests to determine the decibel out-put of a 24 - 26 inch barrel with .45 Colt Cowboy Ammunition.

Possibly. But why fool around? Get a 32" tube and use very fast powder, and hope the bullet will be able to coast out still going at least at snubnose pistol velocity. I thought I would run the theoretical numbers. QuickLOAD says 4 grains of N310 under a 300 grain lead bullet will leave the muzzle of that long barrel with about 180 PSI remaining. To have something familiar to compare it to, 230 grain hardball over 5 grains of Bullseye (comparable to the military hardball load) leaves the muzzle with about 2700 PSI remaining. To compare loudness, this works out to about a factor of 15 difference in absolute pressure. The number of decibles difference from pressure is 20 times the base 10 logarithm of the ratio of the two pressures.

20 x log(15) = 23.5 dB.

In pschoacoustic testing, the ear's logarithmic sensitivity turns out to hear a 10 dB increase as a doubling of loudness, and a 10 dB decrease as a halving of loudness. So, 23.5 dB/10 is 2.35, so loudness will be doubling or halving 2.35 times, or:

2^2.35=5.1.

So, the result is, the 32" barreled, low power .45 LC bullet will sound 5.1 times less loud, or have about 1/5 the apparent loudness of hardball fired from a 5" barrel (closed breech).

This may give you some idea of the limitation of supressors in reducing sound. 2 raised to a power of dB/10 will give you the approximate apparent loudness difference, where dB is the reduction rating for the supressor. I say approximate, because the supressor will also change the frequency content of the blast, tending to reduce the higher frequencies more. The ear doesn't hear all frequncies with the same sensitivity, so that 10 dB number for doubling or halving isn't uniformly true across the audio spectrum, and that complicates the apparent effect. You really need the decibels of the produced power spectrum weighted to compensate for what the ear hears at different frequencis.

Old Ironsights
04-04-2007, 11:07 AM
My 180gr .357s move out at 500-550fps using 5gr of 777 or BP under a case of farina.

As a matter of safety, I refuse to load catsneeze loads with anything but BP or Sub. Never have to worry about too much fast powder that way.

BTW, my barrel length is 20" - and the subjective volume is about the same as a .22 Super Colibri (powderless load) from my Ruger 96/22.

I suppose if you could get decent penetration the .45LC catsneeze could be a <25yd deerwhacker... The 1700s Girandoni .46 repeating Air Rifle was used quite handily for deer.... "velocity of over 900 fps with balls of 120.4 grains for a muzzle energy of 217 ft. lbs..."

Not great, but still...

http://www.beemans.net/lewis%20assault%20rifle.htm

jean1948
04-04-2007, 07:18 PM
No, Jean - the .300 Whisper is a unique chambering.

Thanks.

Is it a .308 (caliber) chambering with different characteristics?

Ekoch424
04-04-2007, 09:07 PM
http://www.stevespages.com/page8d.htm

http://www.stevespages.com/jpg/cd300whisper.jpg

There's the specs on the .300 whisper and any other cases

gmd3006
04-07-2007, 06:57 PM
Jean, I see you're having a little trouble getting a straight answer. Here it is:

The .221 Remington Fireball round looks a lot like a .223, but the case is shorter from the base up to the shoulder. It was introduced for the Remington XP-100 bolt action pistol, and has been chambered in Contenders. The ammo is still commercially offered, but no new guns are so chambered.

If you neck one of these cases up to .30 cal, you have a .300 whisper. It's supposed to be a good round for Contenders. Its case is way too small to fit the chamber and be fired from, say, a .308 Win. rifle.

Cases with shoulders don't do well in revolvers, since they tend to stretch in the relatively loose chambers. Hence the bolt & single-shot pistol chamberings.

The .300 whisper case is sized just right to launch a .30 cal bullet just under sonic velocity, and has a low pressure remaining in the barrel at the point the bullet exits. So, a silencer works well on silencing the gun, and the bullet travelling under the speed of sound doesn't make a sonic boom as it travels thru the air.

:cool:

jean1948
04-07-2007, 07:14 PM
Jean, I see you're having a little trouble getting a straight answer. Here it is:

The .221 Remington Fireball round looks a lot like a .223, but the case is shorter from the base up to the shoulder. It was introduced for the Remington XP-100 bolt action pistol, and has been chambered in Contenders. The ammo is still commercially offered, but no new guns are so chambered.

If you neck one of these cases up to .30 cal, you have a .300 whisper. It's supposed to be a good round for Contenders. Its case is way too small to fit the chamber and be fired from, say, a .308 Win. rifle.

Cases with shoulders don't do well in revolvers, since they tend to stretch in the relatively loose chambers. Hence the bolt & single-shot pistol chamberings.

The .300 whisper case is sized just right to launch a .30 cal bullet just under sonic velocity, and has a low pressure remaining in the barrel at the point the bullet exits. So, a silencer works well on silencing the gun, and the bullet travelling under the speed of sound doesn't make a sonic boom as it travels thru the air.

:cool:


Thanks, that answers my question. Same bullet but different case.

Jean

BAGTIC
04-19-2007, 12:27 PM
Simpleist suppressor is a heavy, low velocity bullet out of a long barrel.

Perfect for small game/varmints out to 25yds (i.e. in urban zones where people get stressed about gunfire...)

It doesn't need to be a long heavy bullet or an extra long barrel. I seat a .36 diameter round ball compressed on top of 4-5 grains of Red Dot in a .357 Magnum. From a 22 inch H&R barrel it sounds like an air Rifle and it kills small game and vermin farther than 25 yards.

Ralph McLaney
04-20-2007, 06:26 PM
Gentlemen:

Remember this thread started with information about a nation that encourages suppressor use as a means of protecting the hearing of hunters and shooters. Suppressors in many nations are just shooting accessories.