Best 300blk can for home defense?

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mhuxtable

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As title states looking for a 300blk can with emphasis on sound reduction and size, in that order. Recommendations?


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I'm re-barreling a 10.5" SBR to 8" in preparation for my Dead Air Sandman-K being parolled. <6" long & hearing safe with subs. I've got other ARs in other chamberings for other jobs & the SBR will be dedicated to subsonic, bump in the night duty.

Quieter cans are gonna be longer than a shorty/K type can & depending on your barrel length are gonna get unwieldy quickly. Mine won't be movie quiet, but will have an overall barrel length of only 13.5" & not blow my ears out should I have pull that trigger indoors.
 
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The most quiet can I've heard on a .300BLK has been the Sig SRD762Ti direct thread. It is movie quiet, but that also comes with a bit more gas in the face.
 
Grim said:
The most quiet can I've heard on a .300BLK has been the Sig SRD762Ti direct thread. It is movie quiet, but that also comes with a bit more gas in the face.
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They make charging handles that mitigate that a bit yes?


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mhuxtable said:
They make charging handles that mitigate that a bit yes?


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Sig doesn't, but I think AAC or Surefire does that helps. I'd just grab a pair of skydiving goggles and run the shit out of it.
 
Unless you’re absolutely 100% without question going to only shoot subs...you need a .30 rifle can, not a pistol can.

(Other than the small handful of pistol cans that can handle subs & supers)
 
BigWaylon said:
Unless you’re absolutely 100% without question going to only shoot subs...you need a .30 rifle can, not a pistol can.

(Other than the small handful of pistol cans that can handle subs & supers)
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Loaded up at home I think I'm 100% on subs otherwise whats the point. And that means shooting with subs to find the best ammo for whatever build I'm making So I'm pretty set on subs I believe.
 
The Sig SRD762Ti is .300WinMag rated, so it's overkill for .300BLK, but nice and quiet.
 
Just my pinion...… but even if it's only subs, a .30 caliber rifle can tends to be a little quieter than a 9mm handgun can. I think most all manufacturers make a fairly decent 9mm handgun can or .30 cal rifle can.

Some rifle can that have been popular recently...…...
Dead Air Sandman
SilencerCo Omega 300
Yankee Hill Machine Resonator
ThunderBeast Ultra Series....
Sig's 762 cans
Im sure Im missing a few!

They all have things they aren't the best at, but excel in other areas....... a can with a lot of Titanium or aluminum may not be the best for a lot of repeated mag dumps..... especially with a rifle round, but they might be great on bolt rifle due to their lighter weight. Generally the larger the can, the quieter.... this is definitely true with the Thunderbeast... but with subs only it may not make much difference. The Omega and the Resonator aren't excessively heavy or large but get lots of good reviews. I've been around the Omega and it's surprisingly quiet for its size.

If you do go with a handgun can, you will need to swap out the spring for a fixed spacer the piston/neilson device for a fixed barrel. Not a big deal but it will cost a little extra.
 
BigWaylon said:
Unless you’re absolutely 100% without question going to only shoot subs...you need a .30 rifle can, not a pistol can.

(Other than the small handful of pistol cans that can handle subs & supers)
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I call BS on this. I've shot 300blk subs and supers out of lots of cans, the bulk of which are aluminum pistol cans. It's just not that powerful a report. Hell, my current 300 can is an F1 wixx filter not much bigger than a 22 can. Granted, I wanted small and light, and I am cool with ablatives, but it handles it all fine. Not movie quiet like my ISIS(also a pistol can) but very hearing safe.
 
bigfelipe said:
I call BS on this. I've shot 300blk subs and supers out of lots of cans, the bulk of which are aluminum pistol cans. It's just not that powerful a report. Hell, my current 300 can is an F1 wixx filter not much bigger than a 22 can. Granted, I wanted small and light, and I am cool with ablatives, but it handles it all fine. Not movie quiet like my ISIS(also a pistol can) but very hearing safe.
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I’m not even discussing the report. Simply the fact a majority of pistol cans that list 300BLK are for subs only.
 
BigWaylon said:
I’m not even discussing the report. Simply the fact a majority of pistol cans that list 300BLK are for subs only.
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Meh, ratings shmatings... I've seen manufacturers do 556 full auto mag dumps through their pistol cans that aren't rated for 300 at all...
 
bigfelipe said:
I call BS on this. I've shot 300blk subs and supers out of lots of cans, the bulk of which are aluminum pistol cans. It's just not that powerful a report. Hell, my current 300 can is an F1 wixx filter not much bigger than a 22 can. Granted, I wanted small and light, and I am cool with ablatives, but it handles it all fine. Not movie quiet like my ISIS(also a pistol can) but very hearing safe.
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A guy who had an AAC Tirant 9mm can 2-3 years ago or so and I remember he was bragging how it was rated for 300bo also...… I made it a point to remind him it was for subsonic only. Well I saw him a few months later and we got to talking about his prairie dog hunting trip...… IIRC he said he got through about 40 rounds of .223 before the can went flying down range. For some reason he had the thought that it was rated for 300bo and it's based off the 5.56 cartridge, it should be fine...….. I reminded him of the term "subsonic" and he go a little grouchy about it, so I got off the topic. At any rate..... rifle rounds burn more powder which produces a gas and heat. An aluminum or titanium blast baffle and mounting threads(this is where they usually fail from overheating) won't handle that heat as well as other materials. A 9mm cartridge typically burns 3.5-7 grains of handgun power, 300bo subs are around 10 grains of Magnum handgun powder, 300bo Supers might go up to 20 grains of Magnum power and the .223 that destroyed his can might go up to 25+ grains of rifle powder..... which was definitely overkill.

It can happen..... not all handgun cans are made as strong as others.
 
If it's for subs, a 9mm can will work, while generally being lighter than a .30 cal can, but subsonic 300blk for personal defense is leaving a lot on the table in the name of being quiet IMO.

I'm all about subs/suppressors, but if I'm using a rifle with a rifle cartridge (300blk in this case) it would be supersonic with a 30cal can.
 
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BigWaylon said:
Unless you’re absolutely 100% without question going to only shoot subs...you need a .30 rifle can, not a pistol can.

(Other than the small handful of pistol cans that can handle subs & supers)
Click to expand...
My Thompson Machine 9mm can is rated for 300blk subsonic only, although there is video of the manufacturer shooting supersonic 5.56 and 7.62x39 SBRs through it. Without the can attached the SBRs threw out massive fireballs. At the end of the video the caption read "No suppressors were damaged in this video" accompanied by a warning that doing so yourself would void the warranty.

My 300blk gun is a 16" carbine and I think nothing of shooting supersonic rounds through it with my 9mm can attached on occasion. If it was a pistol or an SBR I might think twice. Never an issue. Doing it for years. I think the restriction protects the can from use at the worst extremes, i.e. extended use of hot supersonic rounds through a 7" pistol, etc.
 
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Flashpoint said:
My Thompson Machine 9mm can is rated for 300blk subsonic only, although there is video of the manufacturer shooting supersonic 5.56 and 7.62x39 SBRs through it. Without the can attached the SBRs threw out massive fireballs. At the end of the video the caption read "No suppressors were damaged in this video" accompanied by a warning that doing so yourself would void the warranty.

My 300blk gun is a 16" carbine and I think nothing of shooting supersonic rounds through it with my 9mm can attached on occasion. If it was a pistol or an SBR I might think twice. Never an issue. Doing it for years. I think the restriction protects the can from use at the worst extremes, i.e. extended use of hot supersonic rounds through a 7" pistol, etc.
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Warranty was my whole point.

Henry Graham dumped a mag of 5.56 through a Spectre (he designed the can).

Nobody is saying it will self-destruct on the first shot. Ratings are for warranty and self-preservation of the end users.
 
BigWaylon said:
Warranty was my whole point.

Henry Graham dumped a mag of 5.56 through a Spectre (he designed the can).

Nobody is saying it will self-destruct on the first shot. Ratings are for warranty and self-preservation of the end users.
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In my application I don't think it is even being stressed, 9mm +p out of a pistol barrel is probably worse. Just saying it depends on the application, and if it's not being damaged the warranty doesn't matter to me because I won't have to use it.
 
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I'm surprised no one has brought up the aspect of using a can for self defense. I built a 9mm AR pistol for home defense and that was my idea too. I pretty much only buy 147gr 9mm now even for carry/SD. I finally decided to not keep the can on the weapon. Subs are not that loud in the first place, it adds 8-10" to the length of your weapon, and it's inconvenient as hell when you want to use that can on something else. Especially when you only own that one can! ;)

Some people want it loud to alert neighbors, etc. Out where I am no one will hear either way.
 
My personal favorite for .300BO is my Griffin Optimus because I run it with subsonics 95% of the time and they are dirty as crap. I like being able to break it down for cleaning. It can run subs in it pistol configuration with no rifle blast shield if I want but that only saves like 1” and 2 ozs so I generally run it in long run setup. It works real nicely but is not suppressed .22lr quiet but close suppressed and I call borderline hearing safe with supers just to not aggravate my tinnitus.
 
Flashpoint said:
I'm surprised no one has brought up the aspect of using a can for self defense. I built a 9mm AR pistol for home defense and that was my idea too. I pretty much only buy 147gr 9mm now even for carry/SD. I finally decided to not keep the can on the weapon. Subs are not that loud in the first place, it adds 8-10" to the length of your weapon, and it's inconvenient as hell when you want to use that can on something else. Especially when you only own that one can! ;)

Some people want it loud to alert neighbors, etc. Out where I am no one will hear either way.
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Well I have an alarm that will wake the neighbors. And in my house which is 1960s, hardwood floors, lots of walls, even subs will be deafening & I'd rather be able to hear where people are coming and going.
 
mhuxtable said:
As title states looking for a 300blk can with emphasis on sound reduction and size, in that order. Recommendations?


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I think that in MOST cases, sound reduction and size are inversely proportional
 
Gemtech released the Lunar-9 which is both modular and .300blk rated (sub I assume)

I am looking at this one pretty hard

 
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Grim said:
The Sig SRD762Ti is .300WinMag rated, so it's overkill for .300BLK, but nice and quiet.
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Works great.
zrdvP4.jpg
 
Runs awesome. My favorite semiauto . That guns feeds and fires everything I put in it. Cycles subs no problem and sounds as good or better than any other 300 BO.
 
InvisibleOne said:
I'd trust it more than a .380 ACP, and lots of guys put their lives on one of those every day.
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quieter than .380 without a can by far. I hate those little guns the .380 tends to come chambered for as well.

Just don't load .300blk in your 5.56 pistol mags :D
 
Same muzzle energy as a 45 ACP. You wont lose much of that shooting at something 20 feet away. Not going too fast so over penetrating is as much of a problem. They make some decent expanding subs these days.
 
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