300 AAC BLK suppressors

[Jmz]

Good day, gentleman.

(I hope this is not in the "PX" forum, as I read I'm not allowed to post there yet. Let me know if I'm in violation please.)

I'm looking for advice on suppressors, and I don't trust the AI completely on this.
Is it worth getting a suppressor specifically designed for 300 blk (9" S/A 1/7; 5/8x24)?
1. Will it be that much better in terms of affecting reliability and cycling than a generic 30 cal.
2. Will the suppression be significantly better (quieter) than a 30 cal silencer which can also be used on other rifles?
I guess I am asking for approximate percentages, like >10% or >20% better to justify?
These things are quite expensive where I am, so if the difference is negligible in both regards, obviously having once that can be used on 6.5 or 556 would make sense.

I've heard good things about the Hyperion and Omega, also looking at AseUtra and cheaper options - the goal being quiet AP, without sacrificing reliability or accuracy.
My understanding is that, generally, more length leads to better suppression and that titanium is a good option.
I was also told to avoid 2nd hand as they can lose their effectiveness after a few thousand rounds.
Other than that, I am open to advice.

Jmz

 

[USK308]

Good day, gentleman.

(I hope this is not in the "PX" forum, as I read I'm not allowed to post there yet. Let me know if I'm in violation please.)

I'm looking for advice on suppressors, and I don't trust the AI completely on this.
Is it worth getting a suppressor specifically designed for 300 blk (9" S/A 1/7; 5/8x24)?
1. Will it be that much better in terms of affecting reliability and cycling than a generic 30 cal.
2. Will the suppression be significantly better (quieter) than a 30 cal silencer which can also be used on other rifles?
I guess I am asking for approximate percentages, like >10% or >20% better to justify?
These things are quite expensive where I am, so if the difference is negligible in both regards, obviously having once that can be used on 6.5 or 556 would make sense.

I've heard good things about the Hyperion and Omega, also looking at AseUtra and cheaper options - the goal being quiet AP, without sacrificing reliability or accuracy.
My understanding is that, generally, more length leads to better suppression and that titanium is a good option.
I was also told to avoid 2nd hand as they can lose their effectiveness after a few thousand rounds.
Other than that, I am open to advice.

Jmz

What is your budget?

There are a fair number of quality suppressors that are uber quiet! When I was building my 300BO SBR, I researched a bunch and was originally thinking about the CGS Hyperion but after a bit more research found that the Otter Creek Labs - Hydrogen L 7.62 was virtually as quiet, but was HUB mount compatible, which was one of my criteria.

Dead-Air makes some good suppressors, as does Rugged Suppressors, Abel Co., CAT and of course Thunderbeast Arms.

 

[Jmz]

Thanks for the reply.
I've hear good things about Otter Creek.
Thanks for the HUB mount suggestion, I'm looking into that.
Budget is probably the equivalent of 500-900 in USD.
So then a 7.62/30 cal is fine? Is there any benefit / reason to consider cans marketed as "300 BLK suppressor"?

 

[USK308]

Thanks for the reply.
I've hear good things about Otter Creek.
Thanks for the HUB mount suggestion, I'm looking into that.
Budget is probably the equivalent of 500-900 in USD.
So then a 7.62/30 cal is fine? Is there any benefit / reason to consider cans marketed as "300 BLK suppressor"?

In my opinion (for whatever that is worth [lol]), I wouldn't go with a "specific" 300 BLK suppressor (ex. SureFire SPS300). My research found that the quietest cans are CGS Hyperion, OCL Hydrogen L 7.62 and TBAC Magnus.

Given your budget, you might have to go a step lower than those I mentioned above. My OCL Hydrogen L is super quiet. There are other cans that are pretty quiet too...though I have no experience with those.

Here's my OCL Hydrogen L on my 300BO SBR:

 

[sparky702]

I would like to see what you end up with . I run a yankee hill phantom stainless steel 308 can and it really isn't an issue on an 8.5 inch blackout But hang that puppy on the end of a 24 inch barrel and you certainly know it . I think I could beat a moose to death with that can . I am going to be shopping for a new lighter weight can after the first of the year . I have had this one for 13 years .

 

[Clayman]

Good day, gentleman.

(I hope this is not in the "PX" forum, as I read I'm not allowed to post there yet. Let me know if I'm in violation please.)

I'm looking for advice on suppressors, and I don't trust the AI completely on this.
Is it worth getting a suppressor specifically designed for 300 blk (9" S/A 1/7; 5/8x24)?
1. Will it be that much better in terms of affecting reliability and cycling than a generic 30 cal.
2. Will the suppression be significantly better (quieter) than a 30 cal silencer which can also be used on other rifles?
I guess I am asking for approximate percentages, like >10% or >20% better to justify?
These things are quite expensive where I am, so if the difference is negligible in both regards, obviously having once that can be used on 6.5 or 556 would make sense.

I've heard good things about the Hyperion and Omega, also looking at AseUtra and cheaper options - the goal being quiet AP, without sacrificing reliability or accuracy.
My understanding is that, generally, more length leads to better suppression and that titanium is a good option.
I was also told to avoid 2nd hand as they can lose their effectiveness after a few thousand rounds.
Other than that, I am open to advice.

Jmz

What host(s) are you looking to suppress?

I personally love the CAT ODB and JL suppressors.

While I'm personally not a fan of Q suppressors (as a company) their performance on Subsonic guns are great.

OCL Hydrogen L is fantastic as is the LPM Mach L.

However depending on the hosts you're wanting to run this on, semi or bolt, supers and subs or just subs, etc recommendations can change.

Imo the CAT ODB is one of the best all around suppressors available. It's excellent on anything I've used it on. 5.56, 6 arc, 6.5cm, 300 blk, 308. While on a bolt gun it's not as quite as some options (it's still good) on a semi auto it is a phenomenal ballance of high suppression and lower back pressure than most.

 

[nikerret]

I’m very happy with the two .30 suppressors I have chosen, thus far. The AB Suppressors A-10 (Warthog 7) is as great a product as it is ugly. I have Griffin Armament Explorr 300 (HUB) that costs nearly twice the price of the A-10.

Subjectively, the first shot with 190gr Sub-X out if my 9” barrel is more quiet with the AB. The second shot is more quiet with the Explorr. After that, they are indistinguishable.

 

[TonyAngel]

Is this just going to be for a 300BO or are you planning to run it on a larger 30 cal round, like .308? Do you need a suppressor that will withstand larger calibers with under 16" barrels?

With the intention of suppressing my 5" AR9, I bought a YHM R9. I figured I could run it on my 9mm and my 300BO. The R9 performs very well for its size and weight. I shot it on my 9mm, 300BO, 16" 5.56, 16" 7.62x39 and 18" .308. Performance ranged from very good to good enough. Since getting the R9, I got an R45 based on a couple of reviews that I saw.

The R45 turned out to be a jack of all trades doing very, very well on my 9mm and 300BO. Performance was also good on my other calibers. If I had it to do over again and I could only have one, I'd go with the R45, although I am happy that I have both. The R9 is shorter and lighter, but the R45 does everything else better.

I'm mentioning these YHM cans because they are a good bang for the buck and it doesn't take a whole lot to suppress a 300BO shooting subs.

 

[MSTN]

I ran an early version of the Surefire SOCOM 300 SPS on my 10.3” .300 Blackout SBR. It was very quiet with subs, but rather heavy, with lots of back pressure.

I switched to a CGS Hyperion K. It has far less back pressure, weighs just about half as much, but isn’t quite as quiet with subs.

 

[Deepwoods]

I agree with the comment above that the CAT OBD is quite good on 300blk.

Also agree the the SPS300 was very quiet, noticeably more so than the SOCOM 762, but also heavy... er robust and back pressure-y

Regarding #1 in OP, the issue of cycling (re subs) is likely more dependent on low vs high back pressure vs dedicated vs general 30cal.

That said, I can get the OBD and the HUX Ventum to cycle most of the subs Ive tried. I have found that I have less feed/ cycling issues with 300 specific magazines (Magpul and Lancer)

CAT's manual is very specific about their Ti cans and temps, but if you shoot just subs, I think it will take a while to get a Ti can "too" hot.

 

[Ape_Factory]

CAT's manual is very specific about their Ti cans and temps, but if you shoot just subs, I think it will take a while to get a Ti can "too" hot.

Unless you're running an FRT and have money to burn. Then all bets are off.

I run a Radical Defense CS3 in Haynes 282. It'll handle subs or supers with an FRT no problem. She's a chunky money but on the end of a 9" barrel it isn't a bother. You can also run an SD Tactical titanium muzzle brake and matching titanium HUB adapter and save a good 5oz. over the RD mounting system.

 

[thedude824]

I agree with others. More info on your case use is needed. Will you be shooting semis and bolt or just one? What is the most powerful caliber you will use (308, 300Win Mag)? What barrel lengths? Shooting just subs or subs and supers? What is your anticipated firing schedule (will you be blasting through a 30 round mag, then reloading and going through another 30 rounds at higher speed?
I’ve got half a dozen cans I think. For bolt guns I use a Hybrid 46M that stays with my MRAD. I used my HUXWRX Flow 762 on my 300BLK along with some other semi autos and it was impressive.. no need to adjust the gas, smooth shooting, lightweight (a little too lightweight for me), no gas to the face, and substantially less carbon buildup in the mags. It wasn’t great on subs though and I planned to use my 300 Blackout as my night vision rig so it will be getting a lot of rounds through it in a short time. I got a Velos 762 and I love it. It sounds fantastic on supers and incredible on subs. No gas issues and it’s all inconel construction means it will stand up to far more than I’ll ever do. It is heavy though… more than double the weight of the HUXWRX despite being 0.5” shorter. It’s not bad since the barrel is only 11.3” and there is already a bunch of stuff hanging off the front.
For me… all semi autos will use flow through or low back pressure cans. If I was shooting MOSTLY semi’s I would go low back pressure or flow through. Most of my semi’s have some sort of adjustment for gas, so I could adjust the gas for a traditional baffle suppressor, but it’s very nice to be able to tune your rifle for the exact recoil/functionality that you want and have it unaffected by adding a can. I used an adjustable gas block on my first 300 Blackout and a traditional baffle can. It shoot just like my current rifle does… for about 50 rounds. By the end of the 2nd or start of the 3rd mag it would start malfunctioning and would require more gas. If I started with that setting in anticipation of the fouling it had a much more firm sharp recoil response. Nothing bad, but a lot more than I deal with now with this setup. It’s smooth as butter. The Velos 762 goes on the 300 Blackout and also on the 14.5” AR. In that configuration I use the 556 inverted flash cap to get better suppression. My girl uses her Velos 762 for 14.5” 6.5 Grendel and an 11.5” AR15 with the 556 endcap. The HUXWRX Flow 762 goes on the SCAR 17 SBR w/KNS DiSCARder, and a 18” Grendel, and a 13.8” Grendel. If I could get them to shoot reliably, Grendel would rule the small frame roost.

 

[Deepwoods]

Just a random "data" point, but I was in a class last night shooting my 8" 300 blk with the CAT ODB Ti and subs. After one of the drills--in which the instructor was walking along side--came up and commented that it was one of the quietest suppressors he'd heard.

I can't speak to his hearing nor his experience with other suppressers (my guess is ok and more than a few), but he did take off his ear pro for a few shots and was amazed.

 

[Ape_Factory]

Hoping TBAC includes CAT in next year's Sound Summit 2025. Looking at the shooter's ear numbers in dBA, my RD CS3 comes in 15th. But then you realize there's less than 2dB between #1 and #15 and the RD is the only one under 6" in length. It even beats out the 3" longer LS3 (I own both) with subs. Kinda nuts. I do think 300 Blackout requires a suppressor designed for subsonic, especially with gas guns.