Suppressors Not a concern?

[loveha]

If your can is not concentric to the bore, but the alignment rod is in no danger of touching the end cap, would you worry about it?
Does it effect accuracy?

I have sent my can in twice, first time it was hitting the end cap, and came back better, but not right. Second time, I just wanted it right, and it came back just the same.

For those that want to know, and I am to exasperated to care about them at this point, it's a Deadair Sandman Ti.

Would really love @TBACRAY input on this. Needless to say, never buying again, or recommending Deadair.

Edit-I have checked it on two rifles, marking the end cap off the first rifle, and points to the same spot on the second rifle.

 

[Threadcutter308]

Do you know for certain that the threading of your muzzle on your barrel is concentric to the bore and that the shoulder is square ?

In these kinds of situations, that's usually where the problem is.

edit; FWIW, I have the same can and no issues on multiple barrels/calibers. (Assuming Direct Thread mount) It is remotely possible that your threaded cap in the can that mates with the muzzle was machined incorrectly, but pretty unlikely. Everything is manufactured on CNC's. The alignment of the can should have been checked with at least one of your barrels. Who threaded the barrel(s) ?

 

[loveha]

Do you know for certain that the threading of your muzzle on your barrel is concentric to the bore and that the shoulder is square ?

In these kinds of situations, that's usually where the problem is.

Positive. Edited first post.
First barrel was a Proof, second was a DD.

 

[smoooth1]

Please define "alignment rod is in no danger of touching the end cap ".

 

[loveha]

This is with the barrel right side up.

Here I flipped the rifle over to eliminate a drooping rod, and it's still the same.

 

[smoooth1]

Definitely not centered, but not going to hit either.
I have never used an alignment rod, but I have chucked enough small diameter bar in the lathe to know they are seldom straight and true.

I trust the results are the same if the rod is rotated?

 

[loveha]

Yes, same results. No matter how I twist it or flip it.

 

[smoooth1]

PM sent

 

[smoooth1]

Are you able to loosen the cap while leaving everything else exactly as it is?

 

[loveha]

I know the issue, told them what it was even.

It's the direct thread end cap, and tube threading.
The issues are hard to get on camera, but the gap is the thickness of a dollar bill.

Then on the opposite side it's tight.

And it correlates to the misalignment.

You would think a machinist would catch this shit. But wtf do I know, I'm just your average factory maintenance man in the but crack of America.

 

[Mechdesigner]

Yeah pretty sure that would not meet there tolerances in the product design documentation...how that made it past quality inspection is beyond me.

 

[loveha]

Do we know if someone from Dead Air is on the hide?

 

[sgtsmmiii]

Had a suggestion - but, just noticed you said "direct thread". Disregard. But, good luck.

 

[loveha]

I've been asked for photos, and will be looked at by I hope Tod. Who is probably at SHOT with Mike. RMA will be given on Monday, which is fine. Have my other can to play with if weather gets better.

I should ask for a 50% off cert for this fiasco lol.

 

[TxWelder35]

Do you have a 4’ level to lay the alignment rod on? Above poster Is right about small diameter rod ever being straight. Much too easy for it it get a small bend in it.

Have you tried rotating the rod while it’s in the barre to see if it moved to the other side?

 

[loveha]

You can spin the rod 180, and flip it around, it's the same story. I have probably done this a dozen times now. It's not the rod.

You can feel the can wobble the more the threads engage.

 

[Sincerd]

I see the issue. They might say its within tolerance, shoot until baffle strike then they'll replace. They have these questions few times a week on arf. I've heard of 2 BS. Both related to lost breaks ok qd mounts. I say shoot it.

 

[Huskydriver]

@Mageever

 

[Mageever]

@loveha First off, let me say I'm sorry you're displeased with the product. We'll be happy to get it back to the factory to look at it.

Some background on our production: We've been massively updating our systems. In the past we've outsourced our manufacturing and while we're still doing some of that, we're now much more integrated in this. We're massively improving our quality and our output.

On this particular product, it's a monolithic welded core that has a titanium tube pressed onto it. Due to the nature of the welded structure, it can have some distortion to it and that's why the tube may appear to have a gap where it meets the back cap. A light chamfer on the edges of those parts can make it appear worse than it is and cerakote can mask that or make it look worse. In any case, I'd have to see it in person to say if there's truly something wrong with it. The seam will always be there, but we definitely don't want it to have a gap for visual reasons, that's for sure. The role of the tube on the Sandman-Ti is to hold the engraving and to add hoop strength.

On the alignment, it's good to know the following about the Sandman products. We EDM after welding to give it a nice, straight bore. The cap is placed on after this. The bore of the cap is oversized by the tolerance allowed in the runout of the welded structure. That's why it's typical on a Sandman cap to see this. If you remove the cap and see the bore rod isn't perfectly centered, then we know it needs help. The amount you're showing in your picture with the alignment rod is very typical for a long welded can. If a bullet is getting within 10-15 thou' of the bore wall of the cap, then you'll start seeing some POI shift or even precision issues. You're well within that based on what I'm seeing.

Having said all that, we're happy to get it and look at it.

Best Regards,

Todd Magee
Dead Air Engineering

 

[Threadcutter308]

You can feel the can wobble the more the threads engage.

Are you saying that you can feel “more wobble”, the further you thread the can onto the barrel ?

Please clarify

 

[loveha]

@Threadcutter308
The more the threads engage the more defined a wobble. Also in the rifle I test this in the most, my Proof barrel, the handgaurd is 17" while the barrel is 12.5". You can see the can wobble inside the hand guard while you slowly screw the can on.

@Mageever
I would like to send the can in again, to have a deeper look. Would prefer not to send it to KGMade if possible. Unless you are also their. I'm assuming they are who make the can. I submitted everything for an RMA and was told to expect a shipping label shortly, but I'm guessing Rodney just hasn't got to it yet.

Here are two more pics. One with the end cap off, the other is with the E Brake.