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Threading a typical sporter-weight barrel? #6616286 01/04/17 07:35 PM
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TxAg Offline OP
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I have a compact little .243 and was thinking that would be a great gun to put a suppressor on (for kids and such).

But, the barrel is a standard 22" "sporter weight" and I'm not sure if there is enough meat to thread for a 5/8-24 can. What do you guys think? Doable to a have a smith thread it? Or am I better off getting a totally different rifle that comes with a threaded barrel already?

For what it's worth, I'd get a .30 cal suppressor so I could run it on my 7.62x39 AR as well.

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616291 01/04/17 07:40 PM
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Without knowing what the diameter was at the end of the barrel, I couldn't say for sure. But, most sporter weight barrels dont have enough meat there to do 5/8-24

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616293 01/04/17 07:41 PM
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Get the QD mount instead of threaded.

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616296 01/04/17 07:42 PM
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I can measure OD of the barrel. But what I don't know is what min thickness you need between the threads and the ID.

Been thinking about getting a 6.5 Creedmoor anyway. This may just be the excuse I need wink Hear good things about that Ruger American, and the Predator version comes with a threaded barrel.

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616318 01/04/17 07:52 PM
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The barrel diameter of my son's Tikka compact 308 is .650" at the muzzle. It's much too small for 5/8x24". That leaves a threading of 9/16" or 1/2". Most choose a 9/16" threading for a muzzle brake. If you threaded it 9/16", then that leaves about a .0875" shoulder (.650" minus 9/16"), which is a little thin for a suppressor, IMO. If you went 1/2"x28 (typical AR-15 threading), it would have enough meat for the shoulder and under the threading for the bore. I'm not a fan of most of the cheap QD mounts that grip with only 2 teeth (one on each side), as they come loose easily, wear quickly, and cause problems.


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Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616329 01/04/17 08:01 PM
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Thank you Chad, that's the info I was after. Sounds like I'm better off building a suppressor-dedicated gun and leaving this one alone.

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616363 01/04/17 08:21 PM
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you could always try cutting the barrel down, would give you a little more substance to thread...just a thought

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616441 01/04/17 09:14 PM
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A safe minimum barrel diameter for 5/8x24 threading is typically around .750". This measurement can be taken .600" back from the muzzle, as that's where your shoulder will sit after threading. That will give you plenty of shoulder for your suppressor to seat on. I recently had a 6.5x284 threaded for my Omega, and assumed the barrel had plenty of meat. After receiving it back I noticed it didn't have a lot of shoulder. I measured it at .710". Silencerco's minimum recommended is .720". It works fine, but I really should have taken the time to measure diameter and look at specs prior to shipping it off. I could have cut it back an inch or so, and been within spec. I'm new to the suppressor world, so I'm learning as I go and realizing there's a lot to look at when considering host weapons.

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616498 01/04/17 09:31 PM
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What about 9/16 to 5/8 adapter?

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616513 01/04/17 09:40 PM
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Same question as Redsnake. Lots of adapters sold out there. If a barrel is ok for a 1/2 threading, can you then buy an adapter?

Re: Threading a typical sporter-weight barrel? [Re: That 1 GUy] #6616516 01/04/17 09:42 PM
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Originally Posted By: That 1 GUy
you could always try cutting the barrel down, would give you a little more substance to thread...just a thought


On my rem 700 .308 with spotter barrel, even at 16.5" there wasn't enough meat to thread


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Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616539 01/04/17 09:55 PM
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My Tikka T3 7/08 was threaded by Morgan @ DSS and without chopping the barrel any he threaded it to 9/16" and it's been solid..


Originally Posted by Jungleexplorer
I really hate to do what I am about to do, because it will be very painful for you.


Re: Threading a typical sporter-weight barrel? [Re: RedSnake] #6616561 01/04/17 10:11 PM
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Originally Posted By: RedSnake
What about 9/16 to 5/8 adapter?


Possibly, with the right planning and set up, you could do that. How that would work and fit exactly, would be the next question, which depends on how the can screws on and mounts to the barrel. That's a phone call to the suppressor mfg or your gun smith.


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Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616647 01/04/17 10:57 PM
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I have a ruger m77 270 with sporter barrel that has the adapter -- running a surefire socom rc 30 cal can over their 5/8 QD brake. It's ugly looking with that adapter!

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616941 01/05/17 01:35 AM
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Morgan at DSS (Now Class 3 Machining I believe) cut and threaded my factory Tikka 7mm-08. He threaded it 1/2x28 and I bought a 1/2x28 to 5/8x24 adapter online for about 15 bucks.

I direct thread my Omega suppressor on and it shoots great. Morgan is a good guy, if you want to thread the rifle give him a shout.

Last edited by Gone to Texas; 01/05/17 01:35 AM.
Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6616942 01/05/17 01:35 AM
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I have a griffin Reece 7 that uses a taper mount. The good thing is I can buy mounts for either 1/2x28 or 5/8x24 and both can shoot 30 cal. I have a Tikka T3 308 compact that was cut down to 17" and has a 1/2x28 threads. Works great.

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6617005 01/05/17 02:09 AM
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Remington is offering a 20" Sporter barrel 700 in 243 with factory 5/8x24 threads, might be the ticket for you.

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6617225 01/05/17 04:37 AM
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We turn the barrel to no taper and concentric with the bore then silver solder a sleeve with enough diameter to make a good shoulder. Thread, taper to make look pretty.

M

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6617834 01/05/17 04:45 PM
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I'd be very careful about who you would get to make a threaded adapter if you go down that route.

My Kimber has a 0.59" muzzle diameter. Factory thread on it is 7/16" I believe. I called up SAS as I had a small 6.5 caliber suppressor from them. They made me a custom 7/16" thread muzzle brake.

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6617895 01/05/17 05:25 PM
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I call Morgan for this kind of stuff... he's the best

Re: Threading a typical sporter-weight barrel? [Re: TxAg] #6627757 01/11/17 08:34 PM
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My factory Tikka barrels are threaded 1/2×28 then I use a 5/8×24 adapter without issues.

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