Vulcan 3 versus Cricket 2 Tactical??? Sir-pings-a-lot??

[ctshooter]

I bought a .22 C2T 45 a few weeks back and I have been very pleased with the function, but the form of the rifle just hasn't fit me perfectly yet.

So I ordered a Vulcan 3 .22 500mm as the Uragan fits me perfectly. The Vulcan 3 fits me perfectly but this is a sound is freaking whack!!! There are pings an echos from the stock shroud - I put a freakin DFL Koi on it and it is quieter than the shroud. The hammer noise I can live with as the C2T has it too. But WTF from the air cylinder. Every damn shot twaaaaannnnngggggggggggggg echoing through the metal air cylinder (not the bottle). I know it is the air cylinder too and I put my ear to hammer and the cylinder and can here with the ping/twang comes from. 

I am a little irritated right now as I know my .30 Uragan has zero ping, and is quieter then the Vulcan 3 in .22 shooting 30 cal at 85 fpe with only the stock shroud. 

I really don't want to hang a can off the front of the Vulcan 3 as it is long enough as it is. Any better options than a Koi? I've tried quite a few on hand. Huggett Astille, Atom, Flax, Sarissa, Hume 5/30, Huma 4/30, etc. 

Where do I go from here - order a .22 Uragan as well to compare? I might have to digress to Dillon, @Dairyboy, to see how he rank the Uragan and the Vulcan 3.

 

[Cannonball]

Contact zx10wall - Derrick Wall. He apparently has made a depinger for his. Honestly I would consider sending it to him for a complete tune if you can do that. You won’t be disappointed with his work.

 

[rwsmike]

I figured It would very quiet with the thicker shroud ...hopefully you can fix the sound .

 

[ctshooter]

After a good deal of testing I definitely determined the majority of the noise is coming from the air tube and NOT the shroud. The shoot noise isn't too bad. Figured this out after putting a towel over the action and air tube area.

Watched a few videos on depingers and decided to go the home grown route. With the air tube flipped to the larger plenum side I installed ribbed vinyl rolled up tightly halfway into the plenum. The ribbing is inline with the air flow so flow through the area will not be impeded and there is still plenty of plenum left.

Reinstalled and what a difference in sound level. 

Still not sure if this will be a keeper for me, but I'm going to shoot it more today.

 

[Emu]

Already got used to the ping of my Vulcan 3 long .30 Cal. Except for that ping, the Vulcan 3 is super quiet.

 

[kelly1]

Put a large piece of wiring spiral wrap in the center of the tube,must be a snug fit ,kelly

 

[ctshooter]

Put a large piece of wiring spiral wrap in the center of the tube,must be a snug fit ,kelly

Do you have an example of what you mean? I'm not picturing this completely.

 

[zx10wall]

I've installed a d-pinger and it noticeably remedies this issue. 

 

[ctshooter]

Derrick - what style of depinger are you using?

I've noticed after shooting the gun for about 2-300 rounds that the ping sounds has gone down a bit. So maybe there is a bit of a break in period.

 

[zx10wall]

One I made from vinyl tubing and a PVC pipe insert. It is installed on the valve side of the tube/plenum. It takes a bit of work to get the PVC insert shaved to the correct O.D. needed. The plenum is so large the cc's taken up by the d-pinger is insignificant and does not hinder power one bit. I have this installed in my .22 V3 Long that it tuned for 79 FPE. I've also installed this in a few others. It is only needed when the Vulcan is configured in the XL plenum setup. It works!

 

[ctshooter]

Very simple and straightforward - thank you.

 

[bconlon]

What is the outer diameter on the pvc and vinyl used?

 

[zx10wall]

 

[bconlon]

Thank you very much ill give this a shot I appreciate it!

 

[davelarson]

What a guy. Look at what Derrick just shared. That’s what I like so much about the forum, all the help you could ask for from a great airgun community. Hopefully the twang will get chased out of the Vulcan.

 

[ctshooter]

Yeah - pretty awesome that Derrick shared the details on the de-pinger. Thank you - that's really generous of you.

 

[heavy-impact]

I designed a depinger for the V3 to test and have it printing now. If it works well I'll publish the file for everyone. It will only touch the airtube wall in two points so you'll squeeze it lightly to put it in place and it should breakup the sound wave. 20x32mm I'm printing it with a 1mm wall in PETG

 

[heavy-impact]

I can not make my slicer software print this depinger correctly so I'm going with bristled hair curlers from amazon. I'll start a new thread after I've tested all the mods.

 

[mkz]

Is the PVC tube not eaten in the gun plenum?

 

[zx10wall]

Is the PVC tube not eaten in the gun plenum?

It does reside in the plenum. In the XL plenum configuration, the V3 has 120cc of plenum which is overkill. I have an 80 FPE .22 V3 and a 149 FPE .30 V3. Believe me, the installed depinger doesn’t take away any power potential.