Longest echo achieved with gunshot.

Pond, James Pond · January 16, 2014, 03:25 PM

Gun related. Honest.

The use of a pistol, blanks and a seemingly endless series of tunnels in Scotland have helped create the world's longest echo at 72 seconds, blitzing the previous 15 second Guiness world record. No idea what gun it was though.

Here is a link to a recording of the shot. It gets so faint I can't hear it on my computer after about 25 seconds but nonetheless.....

They would presumably want the loudest cartridge available or the one with the widest acoustic range. Perhaps some techie types can clarify. Tokarev? .44 Mag? .357Mag? Judging by the sound I'd guess .357...

Either way, it sounds impressive!!

JD0x0 · January 16, 2014, 03:33 PM

shooting my .270 in the mountains yielded a pretty long echo. Must've heard it bounce back easily 15-20 seconds after the shot. It was so loud, I had a neighbor over a mile away call me and ask if I was shooting on his land, because it sounded so close to him.

mete · January 16, 2014, 03:49 PM

What you want is a short barrel so much of the powder is burned outside the barrel.
A powder that doesn't have additives that reduce muzzle flash and blast .
Lots of powder like one of the magnums .
Maybe a 338 Lapua with fast powder.

JD0x0 · January 16, 2014, 04:59 PM

Quote:

What you want is a short barrel so much of the powder is burned outside the barrel.
A powder that doesn't have additives that reduce muzzle flash and blast .
Lots of powder like one of the magnums .

Sounds like the Obrez Nagant would work perfectly. The 7.62x54R could be considered a 'magnum' considering it is capable of generating in excess of 3200ft-lbs muzzle energy through a 29'' barrel, when hand loaded. Cut 20'' off the barrel and this is pretty much what you get.
https://www.youtube.com/watch?v=WTpgSGXqZVM

Pond, James Pond · January 16, 2014, 05:08 PM

The news articles all describe the gun as a pistol carrying blanks. Sure a rifle would have been louder but perhaps, acoustically a pistol was better...

dakota.potts · January 16, 2014, 05:24 PM

I'd liek to see a short barreled AR pistol with a muzzle break next

SHE3PDOG · January 17, 2014, 03:18 AM

Who knew that was a record that was actually kept track of. I'm actually surprised that the last one was only 15 seconds. That seems relatively short.

WardenWolf · January 17, 2014, 05:34 PM

It doesn't take much to create an echo. I've created one off fairly distant mountains with a paintball gun (it was an old gun with an unported brass barrel). To create the best echo you want it focused downrange. So no porting, muzzle brakes, etc. You want it all coming out of the barrel and following the bullet.

January 16, 2014, 03:25 PM	#1
Pond, James Pond Senior Member Join Date: July 12, 2011 Location: Top of the Baltic stack Posts: 6,079	Longest echo achieved with gunshot. Gun related. Honest. The use of a pistol, blanks and a seemingly endless series of tunnels in Scotland have helped create the world's longest echo at 72 seconds, blitzing the previous 15 second Guiness world record. No idea what gun it was though. Here is a link to a recording of the shot. It gets so faint I can't hear it on my computer after about 25 seconds but nonetheless..... They would presumably want the loudest cartridge available or the one with the widest acoustic range. Perhaps some techie types can clarify. Tokarev? .44 Mag? .357Mag? Judging by the sound I'd guess .357... Either way, it sounds impressive!! __________________ When the right to effective self-defence is denied, that right to self-defence which remains is essentially symbolic. Freedom: Please enjoy responsibly. Last edited by Pond, James Pond; January 16, 2014 at 03:38 PM.

January 16, 2014, 03:49 PM	#3
mete Senior Member Join Date: June 14, 2004 Location: NY State Posts: 6,575	What you want is a short barrel so much of the powder is burned outside the barrel. A powder that doesn't have additives that reduce muzzle flash and blast . Lots of powder like one of the magnums . Maybe a 338 Lapua with fast powder. __________________ And Watson , bring your revolver !

January 16, 2014, 05:08 PM	#5
Pond, James Pond Senior Member Join Date: July 12, 2011 Location: Top of the Baltic stack Posts: 6,079	The news articles all describe the gun as a pistol carrying blanks. Sure a rifle would have been louder but perhaps, acoustically a pistol was better... __________________ When the right to effective self-defence is denied, that right to self-defence which remains is essentially symbolic. Freedom: Please enjoy responsibly.

January 16, 2014, 05:24 PM	#6
dakota.potts Senior Member Join Date: February 25, 2013 Location: Keystone Heights, Florida Posts: 3,084	I'd liek to see a short barreled AR pistol with a muzzle break next __________________ Certified Gunsmith (On Hiatus) Certified Armorer - H&K and Glock Among Others You can find my writings at my website, pottsprecision.com.

January 17, 2014, 03:18 AM	#7
SHE3PDOG Senior Member Join Date: January 27, 2013 Posts: 988	Who knew that was a record that was actually kept track of. I'm actually surprised that the last one was only 15 seconds. That seems relatively short. __________________ Semper Fi Marine, NRA member, SAF Defender's Club member, and constitutionally protected keeper and bearer of firearms

January 16, 2014, 03:33 PM	#2
JD0x0 Senior Member Join Date: January 30, 2013 Posts: 1,037	shooting my .270 in the mountains yielded a pretty long echo. Must've heard it bounce back easily 15-20 seconds after the shot. It was so loud, I had a neighbor over a mile away call me and ask if I was shooting on his land, because it sounded so close to him.

January 17, 2014, 05:34 PM	#8
WardenWolf Junior member Join Date: December 12, 2013 Location: Northern Virginia Posts: 135	It doesn't take much to create an echo. I've created one off fairly distant mountains with a paintball gun (it was an old gun with an unported brass barrel). To create the best echo you want it focused downrange. So no porting, muzzle brakes, etc. You want it all coming out of the barrel and following the bullet.