Posted: 12/21/2015 10:12:40 AM EDT
[Last Edit: Defender3][Edited]
My TQ is awaiting my Form 4 and sitting at my FFL, but he said he'd go to the range with me tomorrow so I could get some time with the TQ on my .556 and 308.  But I need some ideas from the hive, or the man himself on mounting the 308 brake to a heavy profile barrel.
The design of the brake doesn't allow the inside shoulder of the brake to contact my barrel. Instead, the rear of the brake makes contact with the barrel and does not allow the shims to contact the inner shoulder unless I stack them about 20 deep. I could time the brake using a lock washer or a regular washer, but I'm not sure they would work properly. Anyone have a suggestion? TIA. Here's the rear profile of the TQ 308 brake where you can see the inside and rear shoulders: 
M24 profile barrel: 
Brake on barrel showing the diameter of the brake to the barrel. The shims actually fit inside the brake and would have to be stacked on the inside shoulder for timing. 
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Originally Posted By mettee: This is not opportune but I would cut a step in the barrel so that it can use the shims. I feel that cutting the step larger in the brake would compromise it too much. Hopefully ML chimes in |
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Originally Posted By jaycoux:
Bump for an answer. What is the largest profile barrel this muzzle brake can be put on without turning down the barrel? FWIW - The ID of my 308 TQ brake is 0.776. |
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Originally Posted By Defender3: FWIW - The ID of my 308 TQ brake is 0.776. Originally Posted By Defender3: Originally Posted By jaycoux: Bump for an answer. What is the largest profile barrel this muzzle brake can be put on without turning down the barrel? FWIW - The ID of my 308 TQ brake is 0.776. It would hardly be "at home on any precision rifle" then, as most precision rigs have barrel with muzzle od greater than 0.76". Seems for most rifles you would have to turn down the barrel to get the brake to fit. I see in another thread you have a pic of the TQ installed on a bolt gun. How did you make it fit? |
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Originally Posted By jaycoux:
It would hardly be "at home on any precision rifle" then, as most precision rigs have barrel with muzzle od greater than 0.76". Seems for most rifles you would have to turn down the barrel to get the brake to fit. I see in another thread you have a pic of the TQ installed on a bolt gun. How did you make it fit? Originally Posted By jaycoux:
Originally Posted By Defender3:
Originally Posted By jaycoux:
Bump for an answer. What is the largest profile barrel this muzzle brake can be put on without turning down the barrel? FWIW - The ID of my 308 TQ brake is 0.776. It would hardly be "at home on any precision rifle" then, as most precision rigs have barrel with muzzle od greater than 0.76". Seems for most rifles you would have to turn down the barrel to get the brake to fit. I see in another thread you have a pic of the TQ installed on a bolt gun. How did you make it fit? I was at my FFL (who has possession of the TQ for the next 4-5 months while I await the Form 4) to get some pictures. I had simply finger tightened the brake and then took pictures. |
LOTD & KOTD-E
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Originally Posted By icecold1: Why not get larger diameter shim washers and butt the shoulder of the brake into the approximate washer..check McMaster Carr once you know the id and od of what you want Pete The problem then becomes whether or not there is an adequate amount of thread contact to make the mount stable. It would be nice to hear a comment from Larue on this one way or the other. There are probably enough people who purchased one of these to run on a bolt gun that would need to know. I bet most people do not even realize this may be an issue. I purchased one to run on a 14.5" TOBR and a bolt gun. I'm afraid I will have to cancel it after reading this thread. The idea of having to pay someone to unpin the socom brakes on 2 barrels in addition to most likely turn a bolt gun barrel down is too much in my opinion. |
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since it is so new to the market I'm sure there will be some growing pains.but it would not surprise me at all if they release another muzzle device to adapt to larger barrels.as for unpinning a barrel and swapping out muzzle devices I would think you would have better luck selling the barrel you have and buying a new one.i know I would certainly have picked up a 200.00 stealth in 14.5 and a adjustable gas block before I modded a current pinned and welded barrel for my tobr.
pete |
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Pete, I don't think there is enough material inside the existing adapter to allow for what you are suggesting. The problem is there is only one pic of the backside of the LT brake available for us to look at. It really is a question only LT could answer. |
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Originally Posted By jaycoux:
Pete, I don't think there is enough material inside the existing adapter to allow for what you are suggesting. The problem is there is only one pic of the backside of the LT brake available for us to look at. It really is a question only LT could answer. Do you think I could simply use a larger diameter washer that matches the back rim of the brake, or will that possibly cause an issue with being concentric to the rifling? |
LOTD & KOTD-E
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Do you need a band-aid Sir? I think I have Hello Kitty or Spongebob.
Let's don't let a little old Indian raid break up a good barbeque and a rodeo.
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Let's don't let a little old Indian raid break up a good barbeque and a rodeo.
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Originally Posted By Defender3:
Do you think I could simply use a larger diameter washer that matches the back rim of the brake, or will that possibly cause an issue with being concentric to the rifling? Originally Posted By Defender3:
Originally Posted By jaycoux:
Pete, I don't think there is enough material inside the existing adapter to allow for what you are suggesting. The problem is there is only one pic of the backside of the LT brake available for us to look at. It really is a question only LT could answer. Do you think I could simply use a larger diameter washer that matches the back rim of the brake, or will that possibly cause an issue with being concentric to the rifling? Wouldn't you lose a lot of thread engagement that way? |
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Originally Posted By jaycoux:
Pete, I don't think there is enough material inside the existing adapter to allow for what you are suggesting. The problem is there is only one pic of the backside of the LT brake available for us to look at. It really is a question only LT could answer. Interested in Larue's response as well. I didn't realize the back of the mount went over the barrel like that. Won't cancel my order over it but I guess I won't be using it on most of my bolt guns if this is an issue. Cheaper to just buy a different suppressor than start having that portion of the muzzle turned down on several guns. |
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Originally Posted By Defender3:
FWIW - The ID of my 308 TQ brake is 0.776. Originally Posted By Defender3:
Originally Posted By jaycoux:
Bump for an answer. What is the largest profile barrel this muzzle brake can be put on without turning down the barrel? FWIW - The ID of my 308 TQ brake is 0.776. Hope you're dead on with that measurement, as my 6.5 RPR in showing 0.744. Don't remember what the exact was on a factory heavier profile savage .308 but it was over 0.8. Looks like ano go on that one 
Still wish Larue would chime in. Didn't they have it mounted on a .300 or .338? Looked like a barrel profile on the heavier side. |
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Originally Posted By TSU45:
Hope you're dead on with that measurement, as my 6.5 RPR in showing 0.744. Don't remember what the exact was on a factory heavier profile savage .308 but it was over 0.8. Looks like ano go on that one
Still wish Larue would chime in. Didn't they have it mounted on a .300 or .338? Looked like a barrel profile on the heavier side. Originally Posted By TSU45:
Originally Posted By Defender3:
Originally Posted By jaycoux:
Bump for an answer. What is the largest profile barrel this muzzle brake can be put on without turning down the barrel? FWIW - The ID of my 308 TQ brake is 0.776. Hope you're dead on with that measurement, as my 6.5 RPR in showing 0.744. Don't remember what the exact was on a factory heavier profile savage .308 but it was over 0.8. Looks like ano go on that one
Still wish Larue would chime in. Didn't they have it mounted on a .300 or .338? Looked like a barrel profile on the heavier side. Fluctuates -5 thousandths (0.7755) when I run around the inside shoulder but it's been fairly consistent at 0.776: 
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LOTD & KOTD-E
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Let's don't let a little old Indian raid break up a good barbeque and a rodeo.
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Let's don't let a little old Indian raid break up a good barbeque and a rodeo.
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Originally Posted By Defender3:
Do you think I could simply use a larger diameter washer that matches the back rim of the brake, or will that possibly cause an issue with being concentric to the rifling? Originally Posted By Defender3:
Originally Posted By jaycoux:
Pete, I don't think there is enough material inside the existing adapter to allow for what you are suggesting. The problem is there is only one pic of the backside of the LT brake available for us to look at. It really is a question only LT could answer. Do you think I could simply use a larger diameter washer that matches the back rim of the brake, or will that possibly cause an issue with being concentric to the rifling? Like TSU said you would lose thread engagement, and I also think you would have concentricity issues as well....The only real solution is to cut the barrel, or get a custom MD made from LT |
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Originally Posted By mettee:
Like TSU said you would lose thread engagement, and I also think you would have concentricity issues as well....The only real solution is to cut the barrel, or get a custom MD made from LT Originally Posted By mettee:
Originally Posted By Defender3:
Originally Posted By jaycoux:
Pete, I don't think there is enough material inside the existing adapter to allow for what you are suggesting. The problem is there is only one pic of the backside of the LT brake available for us to look at. It really is a question only LT could answer. Do you think I could simply use a larger diameter washer that matches the back rim of the brake, or will that possibly cause an issue with being concentric to the rifling? Like TSU said you would lose thread engagement, and I also think you would have concentricity issues as well....The only real solution is to cut the barrel, or get a custom MD made from LT I'm tracking; looks like this bolt gun will get the SOCOM. |
LOTD & KOTD-E
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Do you need a band-aid Sir? I think I have Hello Kitty or Spongebob.
Let's don't let a little old Indian raid break up a good barbeque and a rodeo.
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Do you need a band-aid Sir? I think I have Hello Kitty or Spongebob.
Let's don't let a little old Indian raid break up a good barbeque and a rodeo.
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Originally Posted By JonLSU:
Just wondering, has anyone just called and asked? That would be entirely too easy. 
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LOTD & KOTD-E
NRA Benefactor
Do you need a band-aid Sir? I think I have Hello Kitty or Spongebob.
Let's don't let a little old Indian raid break up a good barbeque and a rodeo.
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Do you need a band-aid Sir? I think I have Hello Kitty or Spongebob.
Let's don't let a little old Indian raid break up a good barbeque and a rodeo.
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Originally Posted By Defender3: That would be entirely too easy. Originally Posted By Defender3: Originally Posted By JonLSU: Just wondering, has anyone just called and asked? That would be entirely too easy. I had this conversation several weeks ago with a rep from LT on the phone. I was left thinking they would make some sort of announcement or add a disclaimer to the TranQuilo info on the website. None of this has happened yet. I can only conclude that altering the website takes time or that they are trying to figure out another solution to the problem, or that they just got busy and forgot. |
For the folks following this thread, here's the solution that will work on my M24 profile barrel:
The 5/8" inside diameter is perfect for the threaded portion of the barrel while the 1" OD doesn't extend past the barrel profile. The pack has 19 differing thicknesses which allow timing the brake while maintaining more than sufficient thread contact with the brake: 0.001?, 0.0015?, 0.002?, 0.003?, 0.004?, 0.005?, 0.006?, 0.007?, 0.008?, 0.010?, 0.012?, 0.015?, 0.020?, 0.025?, 0.031?, 0.047?, 0.062?, 0.093?, and 0.125?. They were $6.10 off of amazon (prime). I didn't notice I hadn't ordered stainless, but I'll order those; the product code is 84160 and that pack contains 18 differing sizes. |
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Originally Posted By TSU45:
Interested in Larue's response as well. I didn't realize the back of the mount went over the barrel like that. Won't cancel my order over it but I guess I won't be using it on most of my bolt guns if this is an issue. Cheaper to just buy a different suppressor than start having that portion of the muzzle turned down on several guns. Originally Posted By TSU45:
Originally Posted By jaycoux:
Pete, I don't think there is enough material inside the existing adapter to allow for what you are suggesting. The problem is there is only one pic of the backside of the LT brake available for us to look at. It really is a question only LT could answer. Interested in Larue's response as well. I didn't realize the back of the mount went over the barrel like that. Won't cancel my order over it but I guess I won't be using it on most of my bolt guns if this is an issue. Cheaper to just buy a different suppressor than start having that portion of the muzzle turned down on several guns. The TQ is pretty heavy, I got a Silencer Co. Omega for my bolt guns (and also because who knows how long before the TQ even gets shipped to the FFL). |
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Originally Posted By n00g7:
The TQ is pretty heavy, I got a Silencer Co. Omega for my bolt guns (and also because who knows how long before the TQ even gets shipped to the FFL). Originally Posted By n00g7:
Originally Posted By TSU45:
Originally Posted By jaycoux:
Pete, I don't think there is enough material inside the existing adapter to allow for what you are suggesting. The problem is there is only one pic of the backside of the LT brake available for us to look at. It really is a question only LT could answer. Interested in Larue's response as well. I didn't realize the back of the mount went over the barrel like that. Won't cancel my order over it but I guess I won't be using it on most of my bolt guns if this is an issue. Cheaper to just buy a different suppressor than start having that portion of the muzzle turned down on several guns. The TQ is pretty heavy, I got a Silencer Co. Omega for my bolt guns (and also because who knows how long before the TQ even gets shipped to the FFL). Only 3 ounces more than a Surefire 762RC and with the dual shoulder, you have a lot of positive contact between the brake and suppressor. |
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Originally Posted By Defender3:
Only 3 ounces more than a Surefire 762RC and with the dual shoulder, you have a lot of positive contact between the brake and suppressor. Originally Posted By Defender3:
Originally Posted By n00g7:
Originally Posted By TSU45:
Originally Posted By jaycoux:
Pete, I don't think there is enough material inside the existing adapter to allow for what you are suggesting. The problem is there is only one pic of the backside of the LT brake available for us to look at. It really is a question only LT could answer. Interested in Larue's response as well. I didn't realize the back of the mount went over the barrel like that. Won't cancel my order over it but I guess I won't be using it on most of my bolt guns if this is an issue. Cheaper to just buy a different suppressor than start having that portion of the muzzle turned down on several guns. The TQ is pretty heavy, I got a Silencer Co. Omega for my bolt guns (and also because who knows how long before the TQ even gets shipped to the FFL). Only 3 ounces more than a Surefire 762RC and with the dual shoulder, you have a lot of positive contact between the brake and suppressor. TQ is 23oz. Silencer Co Omega is 14oz. With the MB attachment, shoulder on ID for compression fit with teeth on OD to lock in place. Seems pretty secure, still at the FFL so I haven't shot it much yet. I plan to use the TQ on FDE Heavy, 556 tOBR, 300blk PWS, and 556 LWRCi when it comes in. Omega will probably remain threaded on a 6.5CM bolt rifle (24") at that point (or possibly on a 6.5CM OBR (20") if/when one is available). |