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Posted: 2/18/2017 6:08:39 PM EDT
Was shooting 22mag today and this happened. The mono core looks basically intact, one small baffle strike. Just looks like too much pressure in the expansion chamber as the can heated up? This happened after about 160ish rounds fired over about 20 minutes
https://www.youtube.com/watch?v=Ulv5Qm0Ptyo I'm not the original owner. I bought it a few years back from the original owner and its been rock solid until now. What do yall think, Am I screwed? Will silencerco still honor the warrenty? Another 8 month wait? Cody UPDATE: I spoke with SiCo yesterday. They completely came through. Apparently, they cut the tube down and fabricated a longer back cap. Should have it back soon. THANK YOU SiCo! |
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Posted: 2/18/2017 6:58:19 PM EDT
[#1]
I doubt that is repairable. You will have to submit another form 4 but I bet Silencerco replaces the can for free.
If they are in a really good mood maybe cover the tax for you. |
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Posted: 2/18/2017 7:08:46 PM EDT
[#2]
Bizarre - almost looks like a squib? Having the serialized tube damaged looks bad, but I wonder if it's actually a functional problem? Definitely let us know what SiCo says!
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Posted: 2/18/2017 8:06:23 PM EDT
[#3]
Wasn't a squib. In fact, we fired another 1/2 mag before we even knew there was a problem. The rounds all of a sudden were impacting low right and we thought the rds got bumped or something so we stopped to investigate. Only then did I notice the anomaly on the can.
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Posted: 2/18/2017 8:23:23 PM EDT
[#4]
Crazy. If it's only a small bulged area, I wonder if they can just cut it off and make you a longer retaining nut.
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Posted: 2/18/2017 8:25:56 PM EDT
[#5]
Quote HistoryQuoted:
Wasn't a squib. In fact, we fired another 1/2 mag before we even knew there was a problem. I'm not trying to be argumentative, and I wasn't there - but "we fired more rounds so it couldn't have been a squib" doesn't exactly compute... It sure looks like a bullet lodged in the suppressor and a second bullet behind it cleared it - also causing the tube bulge. There's just no way I can see for that much pressure building up WITHOUT an obstruction. If the squib had enough power to cycle the action (presumably this is an auto of some flavor) then the sound would have been your only indication. I suppose a bad baffle strike might have left lead partially obstructing the bore? What host was this run on? |
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Posted: 2/18/2017 9:33:08 PM EDT
[#6]
Quote HistoryQuoted:
I'm not trying to be argumentative, and I wasn't there - but "we fired more rounds so it couldn't have been a squib" doesn't exactly compute... It sure looks like a bullet lodged in the suppressor and a second bullet behind it cleared it - also causing the tube bulge. There's just no way I can see for that much pressure building up WITHOUT an obstruction. If the squib had enough power to cycle the action (presumably this is an auto of some flavor) then the sound would have been your only indication. I suppose a bad baffle strike might have left lead partially obstructing the bore? What host was this run on? Quote HistoryQuoted:
Quoted:
Wasn't a squib. In fact, we fired another 1/2 mag before we even knew there was a problem. I'm not trying to be argumentative, and I wasn't there - but "we fired more rounds so it couldn't have been a squib" doesn't exactly compute... It sure looks like a bullet lodged in the suppressor and a second bullet behind it cleared it - also causing the tube bulge. There's just no way I can see for that much pressure building up WITHOUT an obstruction. If the squib had enough power to cycle the action (presumably this is an auto of some flavor) then the sound would have been your only indication. I suppose a bad baffle strike might have left lead partially obstructing the bore? What host was this run on? Solomon, good though on lead build up causing back pressure issues. I was shooting copper jacketed ammo and there didnt seam to be an unusual amount of lead or carbon fouling internally. I still can't wrap my brain around how a squib would get caught in the suppressor in the first place. Then get cleared by a subsequent round? Seems like that would have been highly likely to cause a catastrophic blow out of the end cap or other major internal trauma as the squib and subsequent projectile would have left the can asymstrically. Chances of both rounds leaving the hole in the end cap perfectly symmetrically so as to leave no damage at all in the last baffle/end cap? Idk. Hopefully guys at silencerco have seen this before. Host was a cmr-30, which I love by the way. |
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Posted: 2/18/2017 9:36:01 PM EDT
[#7]
Either you'll have another 4 form to file or SilencerCo can shorten it; but that would be a good bit of work.
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Posted: 2/18/2017 10:45:15 PM EDT
[#8]
Quote HistoryQuoted:
Either you'll have another 4 form to file or SilencerCo can shorten it; but that would be a good bit of work. 
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Posted: 2/18/2017 11:12:23 PM EDT
[#9]
Quote HistoryQuoted:
I still can't wrap my brain around how a squib would get caught in the suppressor in the first place. Then get cleared by a subsequent round? Seems like that would have been highly likely to cause a catastrophic blow out of the end cap or other major internal trauma as the squib and subsequent projectile would have left the can asymstrically. Chances of both rounds leaving the hole in the end cap perfectly symmetrically so as to leave no damage at all in the last baffle/end cap? Yeah, I'm stumped too - the half-tubes are ok? The whole failure is just bizarre to me. I'm not an expert though, just thinking through the physics. There's no threading on that outer tube, so it sure seems like a repair section could be added - wouldn't be pretty, but if it were me I might take ugly and back in my hands vs waiting out another F4.... |
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Posted: 2/19/2017 12:00:58 AM EDT
[#10]
Quote HistoryQuoted:
Yeah, I'm stumped too - the half-tubes are ok? The whole failure is just bizarre to me. I'm not an expert though, just thinking through the physics. There's no threading on that outer tube, so it sure seems like a repair section could be added - wouldn't be pretty, but if it were me I might take ugly and back in my hands vs waiting out another F4.... Quote HistoryQuoted:
Quoted:
I still can't wrap my brain around how a squib would get caught in the suppressor in the first place. Then get cleared by a subsequent round? Seems like that would have been highly likely to cause a catastrophic blow out of the end cap or other major internal trauma as the squib and subsequent projectile would have left the can asymstrically. Chances of both rounds leaving the hole in the end cap perfectly symmetrically so as to leave no damage at all in the last baffle/end cap? Yeah, I'm stumped too - the half-tubes are ok? The whole failure is just bizarre to me. I'm not an expert though, just thinking through the physics. There's no threading on that outer tube, so it sure seems like a repair section could be added - wouldn't be pretty, but if it were me I might take ugly and back in my hands vs waiting out another F4.... Yea, half shells are fully intact. I'm with you, waiting on a form 4 would SUCK. maybe they can shorten this one while I wait for a new registered tube/form 4. I'll keep ya'll posted. |
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Posted: 2/19/2017 12:05:55 AM EDT
[#11]
Quote HistoryQuoted:
maybe they can shorten this one while I wait for a new registered tube/form 4. Given it's a monocore, I don't think the whole thing can be shortened - but since it's an outer unthreaded tube, why couldn't the bulged part be cut off and another piece of tubing be welded/soldered on, presumably via a collar. Think of joining two pieces of copper tubing for plumbing - it would be ugly but would it work? Disclaimer: I'm an electrical engineer, NOT a mechanical engineer 
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Posted: 2/19/2017 12:08:45 AM EDT
[#12]
Quote HistoryQuoted:
Yeah, I'm stumped too - the half-tubes are ok? The whole failure is just bizarre to me. I'm not an expert though, just thinking through the physics. There's no threading on that outer tube, so it sure seems like a repair section could be added - wouldn't be pretty, but if it were me I might take ugly and back in my hands vs waiting out another F4.... That's what I was thinking. Especially since the rear of the is square unlike the squiggly front, hopefully SiCo can trim an inch off the tube and weld a new section on. I'm not 100% sure but I believe this is OK by the ATF. |
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Posted: 2/19/2017 12:15:41 AM EDT
[#13]
Looks like it shot loose, and the bullet destabilized from grazing an earlier baffle.
Overpressure blew the tube up at the gap between the two sleeves. |
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Posted: 2/19/2017 12:38:27 AM EDT
[#14]
Quoted:
This happened after about 160ish rounds fired over about 20 minutes Might just be me but this seems excessive. While the Sparrow is rated for .22 Mag that just seems like a lot of rounds. Good luck, but that looks like it's gonna need a 100% replacement. |
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Posted: 2/19/2017 12:44:25 AM EDT
[#15]
So I looked at your video a little closer. It looks like that was one of the original Sparrows that was upgraded to the current Sparrow spec (your serial number has an SP prefix). If so, I believe the original Sparrow tubes were aluminum and not carbon or stainless steel like the current generation Sparrows.
I don't know if having an Al tube adds any caliber (the 22mag that you were shooting) or firing rate restrictions on an upgraded Gen 1 Sparrow. Hopefully others can chime in. |
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Posted: 2/19/2017 1:21:29 AM EDT
[#16]
Quote HistoryQuoted:
Overpressure blew the tube up at the gap between the two sleeves. Your right, the failure point was right at the gap between the two sleeves. |
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Posted: 2/19/2017 1:27:26 AM EDT
[#17]
Quote HistoryQuoted:
Your right, the failure point was right at the gap between the two sleeves. Quote HistoryQuoted:
Quoted:
Overpressure blew the tube up at the gap between the two sleeves. Your right, the failure point was right at the gap between the two sleeves. I'm thinking that when the bullet destabilized from grazing a baffle it actually plugged that last baffle that has a chunk taken out of it. The overpressure blew it out the end of the tube, breaking the piece of the baffle off, and blew your tube up at the weakest space on the back pressure side of the blockage, the gap in the sleeve. It probably all happened due to the can shooting loose. I have a sparrow, and i have to tighten it up every so often when I am shooting a host that does not have the sparrow-spec threads with the o-ring contact. I suppose it would happen quicker with 22 mag. The tube could be repaired by silencerco, but it may cost you. It would involve truing everything up, and some careful welding. |
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Posted: 2/19/2017 1:28:48 AM EDT
[#18]
Quote HistoryQuoted:
Might just be me but this seems excessive. While the Sparrow is rated for .22 Mag that just seems like a lot of rounds. Good luck, but that looks like it's gonna need a 100% replacement. Quote HistoryQuoted:
Quoted:
This happened after about 160ish rounds fired over about 20 minutes Might just be me but this seems excessive. While the Sparrow is rated for .22 Mag that just seems like a lot of rounds. Good luck, but that looks like it's gonna need a 100% replacement. Honestly, I didn't know there was such a thing as excessive (within reason). Ive done this a couple times with similair volumes of fire without issue. This tube is supposed to be rated for full auto fire. I could see if I just mag dumped 160 round's at 1 round a Second....but seems like it should handle 1 round every 7 seconds with no issue. Idk |
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Posted: 2/19/2017 1:31:05 AM EDT
[#19]
Quote HistoryQuoted:
So I looked at your video a little closer. It looks like that was one of the original Sparrows that was upgraded to the current Sparrow spec (your serial number has an SP prefix). If so, I believe the original Sparrow tubes were aluminum and not carbon or stainless steel like the current generation Sparrows. I don't know if having an Al tube adds any caliber (the 22mag that you were shooting) or firing rate restrictions on an upgraded Gen 1 Sparrow. Hopefully others can chime in. You are correct, this was an older tube that got the upgrade. The sleeves are ss, but the outer tube is aluminium I believe. |
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Posted: 2/19/2017 1:32:38 AM EDT
[#20]
Quote HistoryQuoted:
I'm thinking that when the bullet destabilized from grazing a baffle it actually plugged that last baffle that has a chunk taken out of it. The overpressure blew it out the end of the tube, breaking the piece of the baffle off, and blew your tube up at the weakest space on the back pressure side of the blockage, the gap in the sleeve. It probably all happened due to the can shooting loose. I have a sparrow, and i have to tighten it up every so often when I am shooting a host that does not have the sparrow-spec threads with the o-ring contact. I suppose it would happen quicker with 22 mag. The tube could be repaired by silencerco, but it may cost you. It would involve truing everything up, and some careful welding. I think you might be right on with this explanation. Gosh dang it! I love my sparrow, Hopefully there is some work around for this. |
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Posted: 2/19/2017 1:36:29 AM EDT
[#21]
Quote HistoryQuoted:
I think you might be right on with this explanation. Gosh dang it! I love my sparrow, Hopefully there is some work around for this. Quote HistoryQuoted:
Quoted:
I'm thinking that when the bullet destabilized from grazing a baffle it actually plugged that last baffle that has a chunk taken out of it. The overpressure blew it out the end of the tube, breaking the piece of the baffle off, and blew your tube up at the weakest space on the back pressure side of the blockage, the gap in the sleeve. It probably all happened due to the can shooting loose. I have a sparrow, and i have to tighten it up every so often when I am shooting a host that does not have the sparrow-spec threads with the o-ring contact. I suppose it would happen quicker with 22 mag. The tube could be repaired by silencerco, but it may cost you. It would involve truing everything up, and some careful welding. I think you might be right on with this explanation. Gosh dang it! I love my sparrow, Hopefully there is some work around for this. There is. They would have to weld an oversize ring onto the outside of the tube over the whole base where the failure occured. It may look a little ugly, but if the tube cant be replaced, then it is the only option. It would look like a mini AK suppressor, so thats kind of cool. |
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Posted: 2/19/2017 2:01:42 AM EDT
[#22]
Quoted:
Was shooting 22mag today and this happened. The mono core looks basically intact, one small baffle strike. Just looks like too much pressure in the expansion chamber as the can heated up? This happened after about 160ish rounds fired over about 20 minutes
https://www.youtube.com/watch?v=Ulv5Qm0Ptyo I'm not the original owner. I bought it a few years back from the original owner and its been rock solid until now. What do yall think, Am I screwed? Will silencerco still honor the warrenty? Another 8 month wait? Cody quote b/c yt would not play the damn video 
 Sparrow broke |
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Posted: 2/19/2017 11:25:47 AM EDT
[#23]
Turn your god damn phone the right way when you film a video.
Sorry about your can. |
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Posted: 2/19/2017 2:31:59 PM EDT
[#24]
Quote HistoryQuoted:
Turn your god damn phone the right way when you film a video. Sorry about your can. Haha, sorry about that. I'm a rookie. |
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Posted: 2/19/2017 6:35:49 PM EDT
[#25]
Quote HistoryQuoted:
Turn your god damn phone the right way when you film a video. Sorry about your can. VVD, vertical video disorder. |
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Posted: 2/20/2017 9:42:14 AM EDT
[#26]
How tight do you make the retaining nut when reassembling? I am bad about over tightening nuts/bolts, plus use anti seize on rimfire cans so I have to be mindful of the retaining nut on the Sparrow. This might have added to the issue.
 On the bright side, a strip of duc tape over the blow out and your back in business while the form 4 for the new tube clears.  Add a bandaid for effect. j/k, that might constitute a "repair"
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Posted: 2/20/2017 2:57:23 PM EDT
[#27]
UPDATE: I talked with SiCo this morning. Good news, they said I am covered even though I am not the original owner. Studs. They would have to shorten the tube 1/2 in-ish and make a new monocore. Might lose a little performance but I'll count myself lucky. Ill keep ya'll posted.
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Posted: 2/20/2017 3:20:01 PM EDT
[#28]
Quote HistoryQuoted:
UPDATE: I talked with SiCo this morning. Good news, they said I am covered even though I am not the original owner. Studs. They would have to shorten the tube 1/2 in-ish and make a new monocore. Might lose a little performance but I'll count myself lucky. Ill keep ya'll posted. 
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Posted: 2/21/2017 11:06:14 AM EDT
[#29]
Quote HistoryQuoted:
There is. They would have to weld an oversize ring onto the outside of the tube over the whole base where the failure occured. It may look a little ugly, but if the tube cant be replaced, then it is the only option. It would look like a mini AK suppressor, so thats kind of cool. This was my first thought too. Why couldn't they machine a short tube with an ID the same as the sparrows OD and weld it? Is it a legal thing? Wouldn't be beautiful but I definitely wouldn't care Eta: on second thought maybe they're going the shortened route since they monocore is damaged anyway |
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Posted: 2/21/2017 11:10:20 AM EDT
[#30]
Quote HistoryQuoted:
UPDATE: I talked with SiCo this morning. Good news, they said I am covered even though I am not the original owner. Studs. They would have to shorten the tube 1/2 in-ish and make a new monocore. Might lose a little performance but I'll count myself lucky. Ill keep ya'll posted. Did you find out whether or not the first gen aluminum tube on the upgraded Sparrow supports 22mag? |
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Posted: 2/21/2017 11:35:50 AM EDT
[#31]
Silencer loosened possibly
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Posted: 2/21/2017 6:34:52 PM EDT
[#32]
Quote HistoryQuoted:
Did you find out whether or not the first gen aluminum tube on the upgraded Sparrow supports 22mag? Yes, I was told it does. Cody |
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Posted: 3/8/2017 8:23:09 PM EDT
[#33]
Just saw your update OP - note edits don't bring the thread back up.
Glad to hear SiCo worked it out - please post pics when you get it! |
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Posted: 3/8/2017 11:11:12 PM EDT
[#34]
Make sure to post some pictures when you get it!
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Posted: 3/9/2017 10:13:02 AM EDT
[#35]
Would like to see pics of the new and improved Sparrow.
Glad they took care of you. Makes me happy I bought 1 of their cans. |
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Posted: 3/9/2017 10:18:47 AM EDT
[#36]
Quote HistoryQuoted:
Crazy. If it's only a small bulged area, I wonder if they can just cut it off and make you a longer retaining nut. Quote HistoryQuoted:
Crazy. If it's only a small bulged area, I wonder if they can just cut it off and make you a longer retaining nut. Looks like SilencerCo took your advice! Especially after the OP said they would have to make a shortened monocore: Quoted:
They would have to shorten the tube 1/2 in-ish and make a new monocore. Might lose a little performance but I'll count myself lucky. |
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Posted: 3/9/2017 10:19:55 AM EDT
[#37]
Quote HistoryQuoted:
Glad they took care of you. Makes me happy I bought |
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Posted: 3/9/2017 11:03:29 AM EDT
[#38]
Quote HistoryQuoted:
Glad they took care of you. Makes me happy I bought |
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Posted: 3/9/2017 1:03:10 PM EDT
[#39]
Quote HistoryQuoted:
Glad they took care of you. Makes me happy I bought I'll play! Someone here has to have a crazy number from them. |
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Posted: 3/12/2017 8:54:42 PM EDT
[#40]
Quote HistoryQuoted:
First (only?) Sparrow K can! Quote HistoryQuoted:
Quoted:
UPDATE: I talked with SiCo this morning. Good news, they said I am covered even though I am not the original owner. Studs. They would have to shorten the tube 1/2 in-ish and make a new monocore. Might lose a little performance but I'll count myself lucky. Ill keep ya'll posted. We should take family pics...your Sparrow K and my Spectre IIk
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Posted: 3/30/2017 12:49:25 AM EDT
[#41]
*Bump* for any new photos of the Sparrow @WinstonLT
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