Suppressors Brake mounts vs Direct thread

[Nooch13]

Ok, so I’ve read all the previous threads about how the brake attachment method is superior, but nobody goes into the why? I’m totally new to suppressors, but I’m one of those guys who needs to fully understand the reasoning behind something...

How does a brake attachment method increase repeatable accuracy? Is there any longevity benefit to either method? Is there any data to support any of this?

 

[SporterII]

No data here but;
Mount could permit using a 30 cal can on a 223.
Direct thread Ranger was far superior to my later M4 2000 garbage.
Quality of work / fit makes a direct mount very reliable in my non scientific opinion

 

[BigTex]

IMO I like brake/fh mounts for AR type rifles so you can have a muzzle device without the can on and direct thread for bolt guns because less moving parts are the best moving parts.

 

[lash]

Who is saying that a brake attachment increases repeatable accuracy over a direct thread attachment? I find that hard to believe and would have to see definitive proof before taking anyone's word on that claim.

 

[BigTex]

Who is saying that a brake attachment increases repeatable accuracy over a direct thread attachment? I find that hard to believe and would have to see definitive proof before taking anyone's word on that claim.

Me too.

This was a similar question that I asked TBAC when seriously researching am Ultra 9, which I now own spanning a .308 and .223 rig due to their CB brakes.

I was told in an email conversation with Ray Sanchez of TBAC: "CB brake mount is the way to go for a precision rifle. Its a better mount than a direct thread. The shoulder on the back of the brake is way better than a 5/8 or even 3/4shoulder can offer."

I think it's a matter of the surface area provided by the base of the brake and resulting torque "snugging" up and holding things secure vs just the threads of a direct. I know this is a rather vanilla description, but intuitively it seems to makes sense as providing a better seal.

He provided these vids to demonstrate how boss he is and of course, why the CB's a better option:

Here are some videos that show how good the mount is
Here is a link to a short video that shows some accuracy and repeatability testing of the CB mount on a 308 at 700 yards

https://thunderbeastarms.com/news/30cb9-accuracy-and-repeatability/



Here is another video of a 6.5 Ultra on a 260 with a CB mount at 700 yards just to show how good the mount is.



Hope this helped and enjoy your TBAC whatever you choose.

from this thread
http://www.snipershide.com/shooting/threads/ultra-9-brake-versus-direct-thread.6874012/

 

[Nooch13]

On a couple of threads on here....unless i was reading them wrong. The one posted above was one of them I read...I also had an email convo with Ray from TBAC where he said the brake method was better than direct thread...I am pretty sure he is one of the best in the business...

I’m a rookie to suppressors (and admit it) just lookingbfor advice! So yeah, I’m officially confused! Lol

 

[lash]

Not to take anything away from Ray, since I also respect what he's done with TBAC and his involvement with the sport, but what I'm reading is an opinion, supported by a concept/idea, and a big dose demonstration of how good TBAC's CB mount is. I don't disbelieve any of that, but it falls FAR short of being proof of anything.

I am not trying to argue against CB/brake mounts and am not trying to sell direct mounts, I just do not see the proof. I can tell you that I have seen many failures of brake mounts to mount up properly, or those that mount loosely with rattle when locked down and even one shot off the end of a rifle. Now I don't think that any of those was a TBAC CB mount, but that hardly inspires confidence that it's a superior mounting system to direct mounting for accuracy (which is what was stated in the OP).

That having been said, I'm sure that the TBAC brake mount is a solid system that would serve anyone well.

 

[BearNaked]

I have always read that the direct thread is the best way to mount a suppressor but those articles were a few years old and they have done a lot with mounts these days. I run a QD mount and haven't had any issues with it. I would say go QD mount just on the sole reason of convenience. no tools required and once I take the can off, boom I have a MB now.

 

[TBACRAY]

In a perfect world there shouldn't be a difference between DT or TOMB as far as accuracy and repeatability. But as we know the world is far from perfect.
There are lots of gunsmiths out there that build fine rifles but shouldn't be cutting threads. Besides greater versatility for mounting on multiple hosts the TOMB style mounts offer much better retention than a DT and greatly helps lessen the effect of poorly cut threads as long as the shoulder is square.
I typically have to use two hands to remove my cans from a CB or BA brake. I get lots of calls from people with DT that say they have to keep checking their can on one of their rifles cause it backs off a bit. With the CB mount we cut both parts and I know when installed properly the can will stay in place. Anyone that has been to our shop knows how we check threads on everything multiple times and change out our thread gauges often (yes they do wear out). In 11 years of building cans I've spoken to many gunsmiths that either use some old brake they have laying around to fit threads to or are using the same old ring gauge they bought 10 years ago. We've sold suppressors to a lot of elite sniper units here and all over the world. They have all went TOMB after testing both. It allows for you gunsmiths threads to have more wiggle room and still work awesome as long as mounted square and Loc-tited down.
I know every DT insert and brake that leave our shop are in spec, they get checked many times before getting boxed up. I have no control over what a gunsmith does. TOMB all the way. All my rifles are TOMB.

 

[_Windrider_]

Plus if you cross thread a TOMB you can just get a new brake. You jack up the threads on your barrel, well get ready to lose an inch or two.

Coincidentally I asked this same thing in a different thread. The premise of mine was I really want an area 419 self timing brake but I don’t want the process of going suppressed and I suppressed to involve removing a brake and reinstalling when no longer shooting suppressed. I’m hoping they develop a TOMB that fits the TBAC because that would never be in stock.