The ones that look like this... Without any after market Mods or LDCs... Also what's the differences between this and the Uragan? Besides the obvious (bottle and stock)...YO!
How LOUD are your VULCANS???
- Thread starter Yo
- Start date
Turn that Gen 4 down to the low 20's and the muzzle noise is "back yard friendly" without an LDC. Very loud at peak velocities and an LDC is needed IMO. They also have a loud ping that originates from multiple locations. Gen 4's have some of the ping taken care of with fixes from the mfg, but the ping is still there. With work, the guns can be made fairly quiet internally and for my Gen 4 .25 the DonnyFL Ronin is the best LDC I've tried. Vulcans are very rewarding in that they are great shooters with great barrels. My Gen 4 .25 is among the most accurate guns I've owned. The side lever is a must, but it does have an annoyance of needing to be held in the open position while inserting or removing mags. The Vulcan 2 solves for this.
Had a .22 Uragan Compact briefly - shouldered well, but it was too loud for my needs and I quickly moved on. Louder than my prior .22 Gen 4 Vulcan.
I hear great things about the standard length Uragans but have not tried one.
Had a .22 Uragan Compact briefly - shouldered well, but it was too loud for my needs and I quickly moved on. Louder than my prior .22 Gen 4 Vulcan.
I hear great things about the standard length Uragans but have not tried one.
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Geez this has got to be the loudest bullpup I have shot in a looooong time. My 177 Vulcan2 Tactic is super quiet compared to this one. I don't have a Ronin but I have a Sumo Emperor a big fat carbon fibre Donny DU (pre FL) and mostly all the Huggetts with the Magna being the biggest. I'm gonna need an adaptor since nothing I have threads on. Thanks for the suggestions! YO!
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Hi!!!!
My vulcan .25 if it is true that it has a quirky sound but I do not consider it anything noisy always shoot it without moderator.
Regards
Enkey
My vulcan .25 if it is true that it has a quirky sound but I do not consider it anything noisy always shoot it without moderator.
Regards
Enkey
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My Uragan .22 standard was very quiet with just the shroud. But the shroud is quite large on them. Also very quiet action noise. I was curious if the Vulcan2 are similar.
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IDK how 2 guns from the very same MFG can be so different in loudness. I'd rather not turn this one down that's why I bought a 177 first. I'm scared to consider buying a Uragan after how loud this one is. YO!
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Hi!!!!
My vulcan .25 if it is true that it has a quirky sound but I do not consider it anything noisy always shoot it without moderator.
Regards
Enkey
Can you somehow post an audio feed of yours shooting? Mine sounds like a Benjamin 392 pumped all the way to the max when shot if thats a good reference. YO!
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I have one in .25 cal shooting@ 900 fps, it has a bark to it but the mechanics of it seem to be amplified being next to my ear.
I have a unbranded mod on it that's only 4 inches in length that takes the bark out of the bite. So I would think a high end mod would make it very quiet.
If your shooting off the reg the report is very noticeably sharper. I can tell when mine falls of the reg just by the crack in sound.
Vulcan regs are sensitive to adjust and if you don't have a reg tester, messing with it you could be off the reg at normal operating pressures thus causing a louder than normal crack.
Donald
I have a unbranded mod on it that's only 4 inches in length that takes the bark out of the bite. So I would think a high end mod would make it very quiet.
If your shooting off the reg the report is very noticeably sharper. I can tell when mine falls of the reg just by the crack in sound.
Vulcan regs are sensitive to adjust and if you don't have a reg tester, messing with it you could be off the reg at normal operating pressures thus causing a louder than normal crack.
Donald
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The 2 biggest contributors to how loud a PCP operates, is the duration of valve dwell relative to the pellet position in the barrel, and its caliber. More dwell = more residual muzzle pressure. One can tune an air gun to be very quiet by reducing the dwell (which results in lower power/velocity) ,or by adding volume at the end of the muzzle with what we call 'ldc's'...its really just that simple.
With that I'd recommend reducing the hammer strike by cutting down hammer travel or hammer spring preload, to achieve reduced residual muzzle pressure, or slap on an LDC for the same effect.
Just my 2c
ps: for example, lets say the valve stays open until the pellet in one shot at 30%, and in another at 45%, both starting at 1925 psi and using a 19.5 inch barrel. Here would be the results:
barrel close: 30% 45%
fps: 860 910
valve close pressure: 1600 1700
muzzle pressure: 642 580
The above scenario plays out as such, the close pressure at 30% is higher due to seeing less volume by the time the valve closes, but since it closes sooner, less air is released, and the remaining barrel volume allows the pressure to have a fairly linear drop post valve closure, where as the close pressure at 50% is a bit lower due to remaining open longer, yet has released more air volume and thus has less remaining volume to reduce itself prior to exiting the muzzle. The difference in muzzle pressure between the two is nearly 10%, or 62psi..while the difference in fps between the two is only 5%...
-Matt
With that I'd recommend reducing the hammer strike by cutting down hammer travel or hammer spring preload, to achieve reduced residual muzzle pressure, or slap on an LDC for the same effect.
Just my 2c
ps: for example, lets say the valve stays open until the pellet in one shot at 30%, and in another at 45%, both starting at 1925 psi and using a 19.5 inch barrel. Here would be the results:
barrel close: 30% 45%
fps: 860 910
valve close pressure: 1600 1700
muzzle pressure: 642 580
The above scenario plays out as such, the close pressure at 30% is higher due to seeing less volume by the time the valve closes, but since it closes sooner, less air is released, and the remaining barrel volume allows the pressure to have a fairly linear drop post valve closure, where as the close pressure at 50% is a bit lower due to remaining open longer, yet has released more air volume and thus has less remaining volume to reduce itself prior to exiting the muzzle. The difference in muzzle pressure between the two is nearly 10%, or 62psi..while the difference in fps between the two is only 5%...
-Matt
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Therefore to get the same velocity it would be quieter with higher pressure and less dwell then lower pressure and more dwell. So setting your regulator for higher pressure while adjusting the hammer spring for equal velocity should be quieter.
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¡¡¡¡Hola!!!!
Mi vulcan .25 si es cierto que tiene un sonido peculiar pero no lo considero nada ruidoso, siempre lo disparo sin moderador.
Saludos
Enkey
¿Puedes de alguna manera publicar una transmisión de audio de tu disparo? El mío suena como un Benjamin 392 bombeado hasta el máximo cuando se dispara si esa es una buena referencia. ¡YO!
Hi
I have recorded some shots I don't know if you could appreciate the real sound
https://youtu.be/vrpRGFHk6Z4
Regards
Enkey
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¡¡¡¡Hola!!!!
Mi vulcan .25 si es cierto que tiene un sonido peculiar pero no lo considero nada ruidoso, siempre lo disparo sin moderador.
Saludos
Enkey
¿Puedes de alguna manera publicar una transmisión de audio de tu disparo? El mío suena como un Benjamin 392 bombeado hasta el máximo cuando se dispara si esa es una buena referencia. ¡YO!
Hi
I have recorded some shots I don't know if you could appreciate the real sound
https://youtu.be/vrpRGFHk6Z4
Regards
Enkey
Oh THANKS!!! That was a perfect video for sound! Mine is much louder than yours. YO!
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My .22 Uragan isn't loud per se in stock form but for my environment (neighbors about 100yd on either side with a trees in between) I like to shoot it with a Sumo. The neighbors have never complained but I like to be considerate and discreet.
I think for normal shooting just the stock shroud is sufficient. Even at 45fpe the stock shroud cuts the bark way down.
I think for normal shooting just the stock shroud is sufficient. Even at 45fpe the stock shroud cuts the bark way down.
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45fpe in a 22 YIKES! An angry beast for sure. I don't know how hot my 22 Vulcan is shooting yet. Haven't chronied it yet. Angry is good too...Thanks! YO!
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