300 Blackout Can for bolt action

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Ag03
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300 Blackout Can for bolt action

Post by Ag03 »

Got my stamp. I am finalizing my design and I have a few details I need help with.
Plan so far:
1.5" 304 SS tube, .065 wall, ~9" long
5-7 60* smooth cones.

Will be used for both supers and subs. I'd like the accuracy to be decent but I am more concerned on getting it as quiet as possible.
Questions I have are:
Should I clip the cones?
Should I "scoop" the baffles?
How big should the blast chamber be?
Ag03
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Re: 300 Blackout Can for bolt action

Post by Ag03 »

Nothing from the braintrust?
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Capt. Link.
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Re: 300 Blackout Can for bolt action

Post by Capt. Link. »

You have set parameters that limit the effectiveness of the build.With cone type baffles 10-12 will be needed or stuff it full with K baffles that are rugged enough for supers.
The only reason after 243 years the government now wants to disarm you is they intend to do something you would shoot them for!
http://www.silencertalk.com/forum/viewtopic.php?f=10&t=79895
SRM
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Re: 300 Blackout Can for bolt action

Post by SRM »

Keep the blast baffle concentric ,no ports for accuracy.
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gunny50
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Re: 300 Blackout Can for bolt action

Post by gunny50 »

SRM wrote:Keep the blast baffle concentric ,no ports for accuracy.
SRM
ports are not a problem in what we tested, notching the blast baffle would not do you good in accuracy.

Gunny
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Bendersquint
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Re: 300 Blackout Can for bolt action

Post by Bendersquint »

SRM wrote:Keep the blast baffle concentric ,no ports for accuracy.
Not the case at all.

Look at 90% of the cans on the market, they all have blast baffle features and are not concentric and no issues. Only a couple designs benefit from keeping the blast baffle concentric.
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Capt. Link.
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Re: 300 Blackout Can for bolt action

Post by Capt. Link. »

Bendersquint wrote:
SRM wrote:Keep the blast baffle concentric ,no ports for accuracy.
Not the case at all.

Look at 90% of the cans on the market, they all have blast baffle features and are not concentric and no issues. Only a couple designs benefit from keeping the blast baffle concentric.
Porting and non-symmetric baffle accuracy degradation is mostly a myth.
I use asymmetric baffles that use huge ports in centerfire calibers with improved accuracy when the can is used.
"B" pm sent.
The only reason after 243 years the government now wants to disarm you is they intend to do something you would shoot them for!
http://www.silencertalk.com/forum/viewtopic.php?f=10&t=79895
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Re: 300 Blackout Can for bolt action

Post by SRM »

Well Crap. Sucks that I cant test without a damn stamp an a year wait. :cry:
Oh well. Gota keep movin forward somehow.
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gunny50
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Re: 300 Blackout Can for bolt action

Post by gunny50 »

Okay, let me try to find the correct words here.

A scooped or a-symmetrical blast baffle can give more accuracy problems.
In my opinion, accuracy is not only the group you shoot when a can is involved but also the POI on the gun / silencer combo.
With some of the larger - stronger calibers this can be a problem.

Now I know that a lot of users will not use their gun without a can of their choice once they have it zeroed in.
But for those that shoot with and without, this might be a reason to use a symmetrical blast baffle.

Most well designed and manufactured silencers will enhance accuracy, big benefit of using the right combo so to say.

Gunny
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Bendersquint
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Re: 300 Blackout Can for bolt action

Post by Bendersquint »

gunny50 wrote:Okay, let me try to find the correct words here.

A scooped or a-symmetrical blast baffle can give more accuracy problems.
In my opinion, accuracy is not only the group you shoot when a can is involved but also the POI on the gun / silencer combo.
With some of the larger - stronger calibers this can be a problem.

Now I know that a lot of users will not use their gun without a can of their choice once they have it zeroed in.
But for those that shoot with and without, this might be a reason to use a symmetrical blast baffle.

Most well designed and manufactured silencers will enhance accuracy, big benefit of using the right combo so to say.

Gunny
I shoot with and without and non symmetrical baffles don't cause issues.
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gunny50
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Re: 300 Blackout Can for bolt action

Post by gunny50 »

Bendersquint wrote:[
I shoot with and without and non symmetrical baffles don't cause issues.
B,

I do not say they give issues, just that some designs will give more POI than others.
And I'm not saying that this is due to the fact that some cans are build like tanks and more heavy that other designs.
In test that we have conducted we found out that some designs will have more accuracy loss read POI that others.
It has been discussed by other users here on ST as well.
04.22 time to get some sleep.

Gunny
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Re: 300 Blackout Can for bolt action

Post by mollinst »

Bendmeister says: "I shoot with and without and non symmetrical baffles don't cause issues."

Nope, at 10 yds it's pretty hard to miss anything! :lol:

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Shift1
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Re: 300 Blackout Can for bolt action

Post by Shift1 »

Ag03 wrote:Got my stamp. I am finalizing my design and I have a few details I need help with.
Plan so far:
1.5" 304 SS tube, .065 wall, ~9" long
5-7 60* smooth cones.

Will be used for both supers and subs. I'd like the accuracy to be decent but I am more concerned on getting it as quiet as possible.
Questions I have are:
Should I clip the cones?
Should I "scoop" the baffles?
How big should the blast chamber be?
Different baffles lend themselves to different applications... Design "A" could be better for subs and design "B" better for supers. You will need to decide what your primary usage will be...optimize for that and accept the other. The 60 d cones are a good choice. Used a bunch for higher pressure applications, whereas the K has been used more for lower pressure applications.
"The Constitution shall never be construed to prevent the people of the United States who are peaceable citizens from keeping their own arms."- Samuel Adams
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gunny50
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Re: 300 Blackout Can for bolt action

Post by gunny50 »

mollinst wrote:Bendmeister says: "I shoot with and without and non symmetrical baffles don't cause issues."

Nope, at 10 yds it's pretty hard to miss anything! :lol:

Bill

Bill, shooting a 1000 meters or more makes things a bit different.
Hitting a fly at 10 yds is still good shooting. ;-)
But we saw more than the advertised POI in some US and EU manufactured silencers.
We have been manufacturing our own longrange accurate silencer models for some years and I do know everybody makes them different.
We are happy in how they perform, and so are my customers.

Gunny
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Re: 300 Blackout Can for bolt action

Post by Shift1 »

The Rifle...
Image

Barrel length is 16.5 inches.
Yes it is an AK variation. Yes, it is a PSL and still 7.62x54R
Ammunition is handloaded....174 SMK .311 diameter
Ammunition is loaded to ~1600fps. Will not cycle action without the can in place. Cycles normally with can attached.
Functions normally with factory ammunition, but do not shoot through can due to excessive muzzle pressure
Image

Top group is with suppressor dismounted. Bottom mounted, 15 total rounds
POI shift is more than likely due to gas escape during semi auto function
Distance is 100 yds from bench using a rest.
Optic is M68 CCO....Comp M2 Aimpoint, no magnification
Temp was about 45 F shot yesterday morning
Suppressor is F1 using a hybrid Omega Baffles that are clipped and ported
Also use this can on AR-15 300 BLK. Have used with subs and supers.
The flier in top group...well happens to everyone
"The Constitution shall never be construed to prevent the people of the United States who are peaceable citizens from keeping their own arms."- Samuel Adams
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Re: 300 Blackout Can for bolt action

Post by mollinst »

Gunny,

You know me, I just can't pass up a good straight line - I was merely having fun with Matt.

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Re: 300 Blackout Can for bolt action

Post by Capt. Link. »

Matt and Gunny still has a point in that some baffles will cause a large yaw.The slant baffle is one that comes to mind.That design benefits from a symmetric blast baffle as it helps limit the yaw.
I have been drooling over Shift1 PSL for over a year it is a very fine build.
The only reason after 243 years the government now wants to disarm you is they intend to do something you would shoot them for!
http://www.silencertalk.com/forum/viewtopic.php?f=10&t=79895
57fairlane
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Re: 300 Blackout Can for bolt action

Post by 57fairlane »

Capt. Link. wrote:Matt and Gunny still has a point in that some baffles will cause a large yaw.The slant baffle is one that comes to mind.That design benefits from a symmetric blast baffle as it helps limit the yaw.
I have been drooling over Shift1 PSL for over a year it is a very fine build.
notably the AAC Titan.
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Re: 300 Blackout Can for bolt action

Post by MMH »

tag...
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