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Posted: 3/24/2017 8:25:23 PM EDT
Does the hole need to be perfectly centered? Mine seems to be a hair to one side. It's a SiCo SpecWar 556k
UPDATE: Just shot it and it was fine. About 30 rounds. I did email SiCo last night so we'll see what they say. |
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Posted: 3/24/2017 8:29:46 PM EDT
[#1]
Going by that picture, it looks more than a hair off. I wouldn't shoot that, if it is that bad.
Contact the manufacturer. |
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Posted: 3/24/2017 8:33:34 PM EDT
[#2]
Quote HistoryQuoted:
Going by that picture, it looks more than a hair off. I wouldn't shoot that, if it is that bad. Contact the manufacturer. |
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Posted: 3/24/2017 8:38:02 PM EDT
[#3]
Is that the new .30 cal Illusion?
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Posted: 3/24/2017 8:39:00 PM EDT
[#4]
So much for testing this tomorrow lol. Thanks guys
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Posted: 3/24/2017 8:42:37 PM EDT
[#5]
Quote HistoryQuoted:
So much for testing this tomorrow lol. Thanks guys They might have wire EDMed the thing and that's how it turned out - the hole is concentric to the baffle stack. |
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Posted: 3/24/2017 8:48:56 PM EDT
[#6]
Its actually "normal". My specwar 762 is the same way. SICO uses EDM cutting after baffles are welded in and occasionally baffles are not completely centered in tube. Talked with SICO on the phone about it when I first got mine. Many trouble free rounds through it now.
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Posted: 3/24/2017 8:49:51 PM EDT
[#7]
Quote HistoryQuoted:
What does it look like when you attach it and sight through the barrel from the chamber? They might have wire EDMed the thing and that's how it turned out. Quote HistoryQuoted:
Quoted:
So much for testing this tomorrow lol. Thanks guys They might have wire EDMed the thing and that's how it turned out. |
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Posted: 3/24/2017 9:39:53 PM EDT
[#8]
That looks bad but I've had a bottle of wine
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Posted: 3/24/2017 10:06:39 PM EDT
[#9]
Invest in an alignment rod and check every host you mount it on before shooting. If it's centered you are good to go.
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Posted: 3/24/2017 10:11:21 PM EDT
[#10]
Quoted:
Does the hole need to be perfectly centered? Mine seems to be a hair to one side. It's a SiCo SpecWar 556k http://i.imgur.com/qDdFhEr.jpg holy shit that is bad. |
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Posted: 3/24/2017 10:13:22 PM EDT
[#11]
Quote HistoryQuoted:
Its actually "normal". My specwar 762 is the same way. SICO uses EDM cutting after baffles are welded in and occasionally baffles are not completely centered in tube. Talked with SICO on the phone about it when I first got mine. Many trouble free rounds through it now. |
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Posted: 3/24/2017 10:17:52 PM EDT
[#12]
Aligned or not, I would not be happy with something that looks like a factory reject.
Silencerco is well known for extremely good customer support. They must recognize that anyone seeing this as a first exposure to their products would be strongly inclined to never buy anything from them. They should recore your tube and front end, and get it centered correctly, if only to protect their reputation. (I'm not slamming the company, I own several Sico's -rifle, pistol, and rimfire). |
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Posted: 3/24/2017 10:25:05 PM EDT
[#13]
Quote HistoryQuoted:
holy shit that is bad. Quote HistoryQuoted:
Quoted:
Does the hole need to be perfectly centered? Mine seems to be a hair to one side. It's a SiCo SpecWar 556k http://i.imgur.com/qDdFhEr.jpg holy shit that is bad. I mean, if it's concentric with the threads, but my god. 
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Posted: 3/24/2017 10:30:51 PM EDT
[#14]
They are wire EDM'd so it should be good to go. One if mine is slightly off centered too although yours appears quite significant.
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Posted: 3/24/2017 10:32:49 PM EDT
[#15]
Quote HistoryQuoted:
That looks bad but I've had a bottle of wine |
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Posted: 3/24/2017 11:01:34 PM EDT
[#16]
Might be best to measure with calipers, and guiderod. But the weld on the right side looks higher or has more buildup than the left causing an optical illusion. Could of been offset in the welding fixture slightly which would only have an effect on weld penetration, or weld height and that could be in thousandths of an inch. So it could be perfectly fine just looks off.
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Posted: 3/24/2017 11:04:45 PM EDT
[#17]
Quote HistoryQuoted:
holy shit that is bad. Quote HistoryQuoted:
Quoted:
Does the hole need to be perfectly centered? Mine seems to be a hair to one side. It's a SiCo SpecWar 556k http://i.imgur.com/qDdFhEr.jpg holy shit that is bad. 
Get it...? It has a hole through it...and it looks like shit...I'll be here all week. |
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Posted: 3/25/2017 1:31:48 AM EDT
[#18]
Quoted:
Does the hole need to be perfectly centered? Mine seems to be a hair to one side. It's a SiCo SpecWar 556k http://i.imgur.com/qDdFhEr.jpg Go ahead shoot it, mine was the exactly the same. I took pictures and emailed SiCo. I was told the stack is EDM cut to be concentric to the threaded QD mount. I installed the mount and checked the bore, everything is fine. I put couple thousand rounds through it already. |
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Posted: 3/25/2017 1:47:23 AM EDT
[#19]
If I were paying for that, I'd be pissed
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Posted: 3/25/2017 7:44:08 AM EDT
[#20]
wow I hope my two sico cans in jail don't look like that. where is the barfing emoji on this website?
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Posted: 3/25/2017 8:55:42 AM EDT
[#21]
As others have said, use an alignment rod or the mk1 eyeball method to check for alignment when mounted on your rifle. If you insist on having the baffle stack and end cap replaced, the suppressor will also be shortened slightly. The end cap has to be cut off, then re-welded, so you're going to end up with even less internal volume (the specwar 556KK, perhaps).
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Posted: 3/25/2017 9:10:26 AM EDT
[#22]
Looking down through the bore out the end it looks fine. No obstructions and perfectly cylyndrical. So I may shoot it today and see what happens
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Posted: 3/25/2017 9:35:33 AM EDT
[#23]
Quote HistoryQuoted:
Go ahead shoot it, mine was the exactly the same. I took pictures and emailed SiCo. I was told the stack is EDM cut to be concentric to the threaded QD mount. I installed the mount and checked the bore, everything is fine. I put couple thousand rounds through it already. though.
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Posted: 3/25/2017 10:42:59 AM EDT
[#24]
You just need to use the right gun:
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Posted: 3/25/2017 11:31:28 AM EDT
[#25]
In all seriousness, I examined the picture in detail. I counted 902 pixels across horizontally and the center was 28 pixels off to the left. That means about 3% out or about .046" off center. I checked the figures by checking the hole diameter which turned out at .316" which I suspect is about right for a 5.56 can. That means that if the threads were concentric to the can, then the exit diameter would allow a .270" bullet fired directly through the center of the can out. That means that if your threads are concentric to the OD of the can and the threads on your barrel are concentric to the bore, then you would be alright with that exit hole.
All that said, there ain't no way I'd call that good. For good measure, I measured my centerfire YHM Phantom and it was about .004" off when measured to the outside of the can as best I could figure, though I don't have proper tools to do it. I have drill rods to check the concentricity and it was dead-center with my Remington 700. |
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Posted: 3/25/2017 12:05:30 PM EDT
[#26]
Probably EDM wire cut. It is fine.
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Posted: 3/25/2017 12:45:35 PM EDT
[#27]
Update in OP
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Posted: 3/25/2017 4:00:15 PM EDT
[#28]
The new Osprey Specwar 556k?
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Posted: 3/25/2017 4:19:18 PM EDT
[#29]
There's no point if it doesn't look good
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Posted: 3/25/2017 4:35:10 PM EDT
[#30]
How does it sound?
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Posted: 3/25/2017 5:12:41 PM EDT
[#31]
With the posts Iv been seeing the last week...
Its making it all the easier to know who NOT to by a can from. Bottom line....it looks like shit. Im sure this kinda quality has nothing to do with there layoffs. |
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Posted: 3/25/2017 6:17:17 PM EDT
[#32]
It looks like the Os in the Hooters logo.
How the hell do they put something like that out the door and think that's okay?
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Posted: 3/25/2017 8:22:55 PM EDT
[#33]
Seriously- AAC did this 10 years ago and was beaten up for it, and, I believe, fixed the issues.
I'd be mad as hell if this were mine. If the path through the can puts the exit at this position, it's not a 90 path through the can from one end to the other- screwing it on it looks like a wobbly wheel- bottom line the can is not working optimally as designed. |
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Posted: 3/25/2017 8:22:59 PM EDT
[#34]
I wouldn't care if that was my can. Cans look like shit after you shoot them enough; as long as the bore is concentric who gives a shit?
There's been tons of perfectly centered cans that have suffered baffle or endcap strikes. This one likely never will. The ASR mount mounts to the same spot every time so there's no concern for abnormal POI shift. |
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Posted: 3/26/2017 12:08:45 AM EDT
[#35]
That would bug the living shit out of me, even if it shot fine. OCD is a bitch. I've bought 3 SiCo cans so far but they are all removable end cap cans and built differently, so they are centered.
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Posted: 3/26/2017 12:18:41 PM EDT
[#36]
I wonder if the off center bullet path would have an uneven effect on the gas pressures against the bullet.
It would be an interesting experiment to test this against another correctly centered version. Wouldn't have to be a benchrest bug hole grade test, unless that's the intended type of shooting; just a real world shooting test of practical accuracy at the shooter's longest ranges. If the shooter can't detect a difference, then there is no difference. (Except for the mental anguish caused by the extreme ugliness, bad advertising for the company, and owning what looks like a defective product). |
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Posted: 3/26/2017 12:26:23 PM EDT
[#37]
Quote HistoryQuoted:
I wonder if the off center bullet path would have an uneven effect on the gas pressures against the bullet. |
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Posted: 3/26/2017 12:51:54 PM EDT
[#38]
Quote HistoryQuoted:
It's not an off center path though - the exit hole is concentric to the stack. It's just that the outer tube is not concentric to the stack. |
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Posted: 3/26/2017 1:16:50 PM EDT
[#39]
Quote HistoryQuoted:
I'd still say that qualifies as an off-center path. Less distance from the projectile to the inner wall and back, so uneven gas pressure as it travels though the bore. |
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Posted: 3/26/2017 1:16:52 PM EDT
[#40]
Quote HistoryQuoted:
I'd still say that qualifies as an off-center path. Less distance from the projectile to the inner wall and back, so uneven gas pressure as it travels though the bore. 
But that's just my reasoning from looking at cutaway photos and I could easily be wrong. So this analysis is worth exactly how much you paid for it. |
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Posted: 3/26/2017 2:40:34 PM EDT
[#41]
Quote HistoryQuoted:
The Osprey and Illusion say that doesn't matter. Quote HistoryQuoted:
Quoted:
I'd still say that qualifies as an off-center path. Less distance from the projectile to the inner wall and back, so uneven gas pressure as it travels though the bore. |
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Posted: 3/26/2017 9:37:26 PM EDT
[#42]
Quote HistoryQuoted:
The Osprey and Illusion say that doesn't matter. I'm not saying it's going to be an issue...but you can't argue that it's not, based on a completely different design. |
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Posted: 3/26/2017 9:52:00 PM EDT
[#43]
No but what it does indicate is that asymmetric gas expansion should not have an effect.
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Posted: 3/27/2017 1:13:51 AM EDT
[#44]
It looks like everything is welded together, and they stick it in a lathe and machine out the muzzle brake end. Then they attach it to a lazzer gun and shoot a hole through it. ZAP
Im sure its nothing to worry about...but still. Iv seen cans made off center so you can see the sights. |
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