Flow through suppressor on bolt gun

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Dec 30, 2014
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9,317
I’ve had wind in the face the last two range trips and I really don’t like driving home and having the smell of all the gas that was in my face stuck in my nostrils. I can’t see how a flow through or low back pressure can would make a huge difference but I’m curious if anyone has experience with them on bolt guns and can opine?
 

jonpall

Lil-Rokslider
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Aug 5, 2019
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143
Have had this same question. Was going to purchase a lower back pressure suppressor (CAT WB) for some 22 cal bolt guns but wondered if I'd only see the theoretical downsides but none of the upsides you'd see if using it with an AR
 

dreadi

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Sep 3, 2024
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Flow through on bolt guns is a misuse of tech. You get less suppression with flow through and none of the benefits. If you're going out with your AR and putting a lot of rounds down range, they are great for keeping gas out of your face and nostrils. Some gun mfgs are making their bolt shrouds different to help mitigate rearward escaping gas.
 

E.Shell

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Jun 8, 2024
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Agree with the "wasted tech"...

Bolt guns and their brass gaskets seal amazingly well and there should be no gas at all, with or without a suppressor.

We were testing sub-sonic .300 Blackout loads in a Rem 700AAC, starting high and working down until the bullet did not reliably exit the bore. On those shots where the bullet stayed in the bore, there was a hiss when we opened the bolt and only then did the gas escape rearward.
 

waspocrew

WKR
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I’ve never had gas in the face with my bolt guns and suppressors. ARs, sure. I wouldn’t go flow through for a bolt gun.
 
OP
wind gypsy
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Dec 30, 2014
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I don’t have issues with gas when the bolt is closed. It’s when the wind is in my face and the bolt is open. Even working the bolt fast there is enough that it can’t be good. General competition style rifle manipulation results in lots of time with bolt open and head in the gun as well.
 

ruger35

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Oct 16, 2017
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Agree with all of the others, you can't have flow and sound suppression. Bolt guns are inherently not gassy, so don't see the need for the flow through. I have a CAT JL that is supposed to be lower back pressure, but is neck and neck with my Magnus for sound. You could possibly give something like that a try. What suppressor are you currently running?
 
OP
wind gypsy
Joined
Dec 30, 2014
Messages
9,317
Agree with all of the others, you can't have flow and sound suppression. Bolt guns are inherently not gassy, so don't see the need for the flow through. I have a CAT JL that is supposed to be lower back pressure, but is neck and neck with my Magnus for sound. You could possibly give something like that a try. What suppressor are you currently running?

Ultra 7 and Scythe.

Again, there is no issue with gas when bolt is closed, but when you have a head wind, a lot of gas sits in the can and bore and then exits through the action when the bolt is opened. I was just curious if more of that gas would leave upon the shot with a flow through. Some of the CAT suppressors have gotten such good suppression reviews with some kind of flow through tech that I was curious if that would have a small incremental impact.
 

5811

WKR
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Jan 25, 2023
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Pewscience.com has the hux flow 7.62 ti right below the diligent defense enticer sti, which some claim to be quieter than the scythe, on a 308 bolt gun. So the flow should be in that loudness neighborhood.

I have a hux flow through hx-qd 7.62. When shot on 308 ar, there's still some gas in the barrel that flows out after the bolt locks back. It might be less, but it's not none.

I see why you are looking into it, but ultimately I don't know if you'll get the improvement in return to make it worth it.
 
Joined
Feb 20, 2024
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How about one of those barrel cooling fans you throw in chamber when bolt open? It would push gas out end of the barrel.
 
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