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Posted: 5/21/2022 8:15:21 AM EDT
[#1]
Quote HistoryQuoted: I have never been able to snug my HAD up enough to keep it from shooting forward under recoil, enough so that it actually has a custom hole in it. ?? Quote HistoryQuoted: Quoted: I've been perfectly happy with my Rifles Only covers, I've used the HAD in 2 classes and it still looks brand new [shrug] I have never been able to snug my HAD up enough to keep it from shooting forward under recoil, enough so that it actually has a custom hole in it. ?? Pro tip (RO even includes this on their site), wrap the cord around the rear of the can or muzzle device and it’s impossible for it to slide forward 
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Posted: 5/22/2022 12:14:59 PM EDT
[#2]
@Mageever all these people saying "bike peg" like it's a bad thing? I think the knurling looks fantastic.
Does Jay have one of these yet? Polonium has set a high performance bar but clearly with commensurately high backpressure. There's no Omega556 backpressure metric yet but you can get a pretty good idea from the bolt close times and Polonium looks a lot like a Saker in that regard. Very curious to see where Sierra 5 lands in this constellation. |
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Posted: 5/22/2022 1:11:24 PM EDT
[#3]
Quote HistoryQuoted: @Mageever all these people saying "bike peg" like it's a bad thing? I think the knurling looks fantastic. Does Jay have one of these yet? Polonium has set a high performance bar but clearly with commensurately high backpressure. There's no Omega556 backpressure metric yet but you can get a pretty good idea from the bolt close times and Polonium looks a lot like a Saker in that regard. Very curious to see where Sierra 5 lands in this constellation. I don't expect anyone from dead air commenting on this until they actually reveal it. |
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Posted: 5/22/2022 1:24:54 PM EDT
[#4]
Quote HistoryQuoted: @Mageever all these people saying "bike peg" like it's a bad thing? I think the knurling looks fantastic. Does Jay have one of these yet? Polonium has set a high performance bar but clearly with commensurately high backpressure. There's no Omega556 backpressure metric yet but you can get a pretty good idea from the bolt close times and Polonium looks a lot like a Saker in that regard. Very curious to see where Sierra 5 lands in this constellation. |
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Posted: 5/22/2022 1:39:01 PM EDT
[#5]
Nothing tests well on a an untuned mk18. There is no free lunch and I doubt you can have a low at ear performance and anything like good sound control at the muzzle with the amount of pressure/unburnt powder on a 10.5.
The polonium did excellent for what it was designed for... in that it actually controlled muzzle Db really well on very short barrel. The caveat to that is that you need to throw a brt tube or abg to take advantage of that so that you can keep the pressure moving through the can. It looks like a great dedicated rifle can. If you want a part time rifle can then get something like a oss or sandman and deal with mediocre overall sound/flash performance. You can fix backpressue/gassiness. You can't fix poor muzzle performance. I'm curious what can you think actually has done well *holistically*. There may be a better balanced can for a 10.5 but it seems obvious that the new coaxial 30 cal cans don't give the same benefits on these systems that they do on a longer 308. |
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Posted: 5/22/2022 1:48:28 PM EDT
[#6]
The poor @ear performance relates directly to the untuned Mk18 host. First you need the can to be quiet at the muzzle, for it to be quiet at your ear by the time it reaches it. The sound field of the can may help to spare your ear as well. But if on a gas operated semi-auto, you have to at least tune it back down to unsuppressed function speed or chamber/port pop is going to contribute heavily to the noise @ear.
People excited about the Polonium are people who build/tune their hosts around the can and not the other way around. That isn't to say it's wrong to get a flow-through can like an OSS instead and leave the host untouched, that too has advantages and disadvantages. But right now you have the confluence of an understanding by consumers that long-length gas system, high operating system weight, and tuned gas port are the recipe for mitigating backpressure on the host, coupled with an understanding that tight bores (and thus higher backpressure, all else being equal) are necessary after all for high sound performance on 5.56 cans. What has been missing are modern cans w/ HUB format that are a good combination of sound attenuation performance/durability/weight, high quality manufacturing and materials, and low price. IOW Saker-killers. I hope/expect the Sierra 5 to do well in this regard too (love my Nomad-Ti), but we won't really know unless/until DA runs it through Pew Science. Given how crowded the comeback of dedicated 5.56 cans on the market is fixin' to be, if I'm a can manufacturer, I'm trying to beat others to the Pew data punch like OCL just did with Polonium. |
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Posted: 5/23/2022 7:33:01 AM EDT
[#7]
Quote HistoryQuoted: The polonium did excellent for what it was designed for... in that it actually controlled muzzle Db really well on very short barrel. The caveat to that is that you need to throw a brt tube or abg to take advantage of that so that you can keep the pressure moving through the can. It looks like a great dedicated rifle can. If you want a part time rifle can then get something like a oss or sandman and deal with mediocre overall sound/flash performance. Quote HistoryQuoted: The polonium did excellent for what it was designed for... in that it actually controlled muzzle Db really well on very short barrel. The caveat to that is that you need to throw a brt tube or abg to take advantage of that so that you can keep the pressure moving through the can. It looks like a great dedicated rifle can. If you want a part time rifle can then get something like a oss or sandman and deal with mediocre overall sound/flash performance. Quoted: People excited about the Polonium are people who build/tune their hosts around the can and not the other way around. That isn't to say it's wrong to get a flow-through can like an OSS instead and leave the host untouched, that too has advantages and disadvantages. But right now you have the confluence of an understanding by consumers that long-length gas system, high operating system weight, and tuned gas port are the recipe for mitigating backpressure on the host, coupled with an understanding that tight bores (and thus higher backpressure, all else being equal) are necessary after all for high sound performance on 5.56 cans. I have a lot of semi-auto rifles and many of them are not AR15s. I guess I look at modern cans from the point of view of wanting suppressors that can be used on many hosts, including those that can't be tuned, or that I won't tune because reasons. But you guys are actually making me reconsider the Polonium specifically for use on purpose built and tuned, dedicated suppressed AR15 SBRs. |
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Posted: 5/23/2022 9:59:25 PM EDT
[#8]
Quote HistoryQuoted: @Mageever all these people saying "bike peg" like it's a bad thing? I think the knurling looks fantastic.... When I was a kid, all the cool kids had bike pegs. OK, I lied. We didn't even have pegs for our Kuwaharas. |
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Posted: 5/23/2022 10:07:25 PM EDT
[#9]
Quote HistoryQuoted: Agreed and I would bet Todd wishes this thread would just die.  Quote HistoryQuoted: Quoted: I'm assuming Dead Air won't be answering those questions until May 27th  Agreed and I would bet Todd wishes this thread would just die. I really do wish I could answer everyone's questions. Sorry! On a positive note, This wasn't some embargoed launch where we were trying to keep everything ultra secret. The stuff being leaked is what we needed to give wholesalers and dealers so they could place orders and have product on the shelves for you guys. In the end, the ATF will probably screw that up.  |
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Posted: 5/24/2022 8:36:54 AM EDT
[#10]
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Posted: 5/24/2022 10:05:53 AM EDT
[#11]
^ I loved those big old Maglights.
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Posted: 5/24/2022 3:33:17 PM EDT
[#12]
Not all knurls are created equal.
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Posted: 5/24/2022 4:18:48 PM EDT
[#13]
Quote HistoryQuoted: Not all knurls are created equal. That’s what she said. |
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Posted: 5/24/2022 5:31:15 PM EDT
[#14]
Quote HistoryQuoted: ^ I loved those big old Maglights. I hurts when you make fun of my new Sierra 5 like that....I have it on good authority that its knurles are the knurliest. |
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Posted: 5/24/2022 8:57:59 PM EDT
[#15]
Quote HistoryQuoted: I hurts when you make fun of my new Sierra 5 like that....I have it on good authority that its knurles are the knurliest. |
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Posted: 5/25/2022 5:25:45 AM EDT
[#16]
Got the teaser last night.
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Posted: 5/25/2022 7:31:37 AM EDT
[#17]
Any chance of a non-HUB, dedicated Xeno version?
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Posted: 5/25/2022 7:33:39 AM EDT
[#18]
Quoted: Any chance of a non-HUB, dedicated Xeno version?  |
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Posted: 5/25/2022 9:02:04 AM EDT
[#19]
Any chance of a pull-it-off-the-line-before-it-gets-to-the-knurling-step option?
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Posted: 5/25/2022 10:01:52 AM EDT
[#20]
Quote HistoryQuoted: Any chance of a pull-it-off-the-line-before-it-gets-to-the-knurling-step option? 
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Posted: 5/25/2022 10:03:56 AM EDT
[#21]
Yah i wish it was styled like the sandman, I'm never guna get that bmx comparison out of my head. But for that this would have me seriously conflicted v an rc2. Atleast it's just the tube, maybe they'll come out with another option.
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Posted: 5/25/2022 10:08:22 AM EDT
[#22]
Quote HistoryQuoted: Any chance of a pull-it-off-the-line-before-it-gets-to-the-knurling-step option? We had some we pulled out of production because the knurl wasn't aggressive enough. We called these "smooth brain" failures. 
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Posted: 5/25/2022 10:17:18 AM EDT
[#23]
Quote HistoryQuoted: Any chance of a non-HUB, dedicated Xeno version? Not really. They're being sold in kits for now. The easiest thing to get what you want here is to torque it in to 20 ft-lbs with Rocksett. The Xeno takes a 1-1/8" socket, so it's easy to torque in and out. That'll be permanent until you don't want it to be. |
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Posted: 5/25/2022 10:58:59 AM EDT
[#24]
Quote HistoryQuoted: Any chance of a pull-it-off-the-line-before-it-gets-to-the-knurling-step option? I find the design of the Sierra to be aesthetically pleasing. I'll most likely be ordering one when it comes out. |
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Posted: 5/25/2022 11:15:34 AM EDT
[#25]
Quote HistoryQuoted: Not really. They're being sold in kits for now. The easiest thing to get what you want here is to torque it in to 20 ft-lbs with Rocksett. The Xeno takes a 1-1/8" socket, so it's easy to torque in and out. That'll be permanent until you don't want it to be. This is one of my favorite things about Xeno. I don't want any more adapters that can't be coaxed with an impact if necessary. Any chance the Sierra 5 can safely swallow 6mm? I know .243 is bigger than .224, but it seems like some 5.56 cans these days are coming sized to accommodate 6mm, and 6mm rifles seem to be multiplying in my safe lately.... |
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Posted: 5/25/2022 3:06:26 PM EDT
[#26]
Quote HistoryQuoted: I really do wish I could answer everyone's questions. Sorry! On a positive note, This wasn't some embargoed launch where we were trying to keep everything ultra secret. The stuff being leaked is what we needed to give wholesalers and dealers so they could place orders and have product on the shelves for you guys. In the end, the ATF will probably screw that up. |
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Posted: 5/25/2022 3:27:47 PM EDT
[#27]
Quote HistoryQuoted: We had some we pulled out of production because the knurl wasn't aggressive enough. We called these "smooth brain" failures. Put it over there in the 75% off clearance bin with my name on it.  |
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Posted: 5/26/2022 12:35:12 AM EDT
[#28]
Quote HistoryQuoted: Put it over there in the 75% off clearance bin with my name on it. https://i.kym-cdn.com/photos/images/original/000/840/283/350.png Quote HistoryQuoted: Put it over there in the 75% off clearance bin with my name on it. https://i.kym-cdn.com/photos/images/original/000/840/283/350.png lol you hope so rite? since the theme is modularity here's hoping they'll do two tube options to go with the two mount options. Quoted: Not really. They're being sold in kits for now. The easiest thing to get what you want here is to torque it in to 20 ft-lbs with Rocksett. The Xeno takes a 1-1/8" socket, so it's easy to torque in and out. That'll be permanent until you don't want it to be. any photos of it with the keymo adapter? testing numbers/ vid of it being shot through nv, each with various barrel lengths? |
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Posted: 5/26/2022 7:22:44 AM EDT
[#29]
Quote HistoryQuoted: Put it over there in the 75% off clearance bin with my name on it. https://i.kym-cdn.com/photos/images/original/000/840/283/350.png |
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Posted: 5/26/2022 9:02:08 AM EDT
[#30]
I think it looks great. The knurling will help hold a can cover in place.
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Posted: 5/26/2022 10:57:02 AM EDT
[#31]
Not gonna lie; it looks badass.
Quote HistoryQuoted: I find the design of the Sierra to be aesthetically pleasing. I'll most likely be ordering one when it comes out. |
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Posted: 5/26/2022 11:47:23 AM EDT
[#32]
Countdown til tomorrow. Am sure to tune into the IG live as I know there will be a huge ass party at DA headquarters. Probably confetti and kazoos and plenty of balloons.
  Eta: Bet they be taking orders to dealers live as well.
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Posted: 5/26/2022 12:26:13 PM EDT
[#33]
Quote HistoryQuoted: Am sure to tune into the IG live as I know there will be a huge ass party at DA headquarters. Probably confetti and kazoos and plenty of balloons. Maybe some full auto RPD noise making and Mike's battle taxi crushing a car! |
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Posted: 5/26/2022 3:39:36 PM EDT
[#34]
Quote HistoryQuoted: Maybe some full auto RPD noise making and Mike's battle taxi crushing a car! I'm gonna definitely tune in! |
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Posted: 5/27/2022 10:51:30 AM EDT
[#35]
@Mageever can you answer questions now?
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Posted: 5/27/2022 11:59:32 AM EDT
[#36]
Backorder at Silencer Shop
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Posted: 5/27/2022 12:07:47 PM EDT
[#37]
Will have them next week, waiting on form 3.
https://hansohnbrothers.com/shop/?_sft_product_cat=223-caliber |
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Posted: 5/27/2022 12:13:57 PM EDT
[#38]
I just bought one from Capitol Armory. I want to try the thing where they ship it to my house. We’ll see how this goes.
Anyone here done this yet? I think they’ve been doing it for TX residents for a while. |
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Posted: 5/27/2022 12:21:24 PM EDT
[#39]
Quote HistoryQuoted: Will have them next week, waiting on form 3. https://hansohnbrothers.com/shop/?_sft_product_cat=223-caliber Nice....will be watching out and grab one. Thanks much! |
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Posted: 5/27/2022 12:31:16 PM EDT
[#40]
Been waiting on this for a good while now! This will bump the Sandman S I currently have on my SG553SB most of the time over to my Keymo 7.62 guns. Not a ton of options for a 9" 5.56 gun that is threaded 14x1 LH!
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Posted: 5/27/2022 1:05:26 PM EDT
[#41]
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Posted: 5/27/2022 1:05:51 PM EDT
[#42]
I like! The knurling looks good IMO. More surface area means it should cool down a little quicker.
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Posted: 5/27/2022 1:10:26 PM EDT
[#43]
Anybody know what the flash signature of this can will be with the flash hider endcap? Benchmark is RC2.
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Posted: 5/27/2022 1:12:34 PM EDT
[#44]
Quote HistoryQuoted: Anybody know what the flash signature of this can will be with the flash hider endcap? Benchmark is RC2. We know as much as you do |
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Posted: 5/27/2022 1:13:04 PM EDT
[#45]
Quote HistoryQuoted: We know as much as you do I was mainly hoping Mageever would pop in here. |
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Posted: 5/27/2022 1:18:44 PM EDT
[#46]
I'm watching their Instagram live presentation. I didn't see the very beginning, but everything I've heard that wasn't advertised is better than I was expecting. Back pressure was very much considered in it's design and Mike said 6 baffles. While host-dependent of course, like a lot of these metrics, he says it compares to the Sandman K in back pressure.
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Posted: 5/27/2022 1:30:02 PM EDT
[#47]
I bought two from CA because they had a 10% code for doing so.
They have an FFL in my state...so I'm interested to see how that goes as well. |
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Posted: 5/27/2022 1:57:57 PM EDT
[#48]
Quote HistoryQuoted: I bought two from CA because they had a 10% code for doing so. They have an FFL in my state...so I'm interested to see how that goes as well. What they have a code? |
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Posted: 5/27/2022 1:57:58 PM EDT
[#49]
Quote HistoryQuoted: I bought two from CA because they had a 10% code for doing so. They have an FFL in my state...so I'm interested to see how that goes as well. Care to share said code? I may pick one up. |
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Posted: 5/27/2022 2:02:49 PM EDT
[#50]
So on the IG live dead air just had, a few people asked how it was compared to a sandman s with a 556 end cap and papas said the sierra 5 would be a few decibels quieter, with a different tone.
It was asked a bunch and I was also curious, so I figured I'd post it here. |
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