TRG-22 rebarrel question

[ronas]

Considering rebarreling 308 TRG-22. Now is 26" with metric thread on end. If I rebarrel will have non metric thread so I can use suppressor. Barrel lenght will be 22"

Has anyone rebarreled using a #17 contour Kreiger barrel? It's considered a heavy varmit. I'm not sure how large of a profile barrel I am limited to with TRG.

 

[bm11]

Re: TRG-22 rebarrel question

The TRG chassis has plenty of room, I wouldn't sweat it.

 

[skog]

Re: TRG-22 rebarrel question

Since I am going down this same road I will let you know that the trg platform runs a much smaller shank than what most barrels run. I was going to run a rock light varmint but I would have approx a 8" straight shank in front of the action. going with a medium palma now and it should be much better. The heavy barrels fit in the chassis but have to be turned down a bunch to match the reciever. Measure the diameter of the barrel in front of the reciever of a trg and a remington to see what I mean.

 

[TEAMSENDIT]

Re: TRG-22 rebarrel question

needs to be 1.150 shank and if you go really heavy and use the trg bipod you will need to mill a flat in the barrel just to forewarn you. I am speaking from experience.

 

[ronas]

Re: TRG-22 rebarrel question

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">needs to be 1.150 shank and if you go really heavy</div></div>

My measurement came out to show the diameter of the barrel at the action to be 1.175" So my measurement is a little off?

 

[TEAMSENDIT]

Re: TRG-22 rebarrel question

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ronas</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">needs to be 1.150 shank and if you go really heavy</div></div>

My measurement came out to show the diameter of the barrel at the action to be 1.175" So my measurement is a little off?</div></div>

i was going from memory sorry i knew it was under 1.2"

 

[HOGTOOTH5R]

Re: TRG-22 rebarrel question

Is your factory barrel completely shot out? Are you going to a different caliber?

The reason I'm asking is, I'm sure you already know the factory TRG Barrels are Very Nice and Accurate already. If the only reason for the Barrel change is the Thread Pattern and Shorter Barrel then why not just have it cut down to 22" then Thread it instead of getting a whole new Barrel?

I will definitely shoot the heck out of my Factory TRG Barrel before getting a new replacement!

 

[ronas]

Re: TRG-22 rebarrel question

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Is your factory barrel completely shot out? Are you going to a different caliber?</div></div>

Not shot out yet. I want to have front threads that will fit suppressor. I just figured labor to do that and take it apart and all that it might be more economical to just rebarrel.

Maybe I should buy the action wrench and take it apart myself and take barrel to local smith for threading.


















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[SmokyJoe]

Re: TRG-22 rebarrel question

No need to remove the barrel from the action. If you take the barreled action to your gunsmith, he can cut and thread without removing the barrel. It'll cost ~$80 - $100.

 

[Dutch405]

Re: TRG-22 rebarrel question

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: D.Draig</div><div class="ubbcode-body">No need to remove the barrel from the action. If you take the barreled action to your gunsmith, he can cut and thread without removing the barrel. It'll cost ~$80 - $100. </div></div>

This.
I had my TrG barrel cut down from 26 to 20 and threaded 5/8 24 so that I could use my AAC cyclone. I just left the barrel on the action and took it to my local gunsmith. He charged me $80 and it looked great.

How many rounds do you have through your Trg barrel? I've been wondering lately how many rounds I can push through my trg22 barrel before its time to send off for a re barrel. Will GA precision re barrel a Trg with a bartlein? Not trying to hyjack the thread I'm just curious.

 

[ronas]

Re: TRG-22 rebarrel question

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">How many rounds do you have through your Trg barrel?</div></div>

I estimate between 3400 and 3500. When I was at my gunsmith delivering parts for another rifle I had him look at inside of barrel with borescope. He said I have some heat cracking out to 6" from the action.

No loss in accuracy yet and I shoot rifle at 600 and 800 yards only.

He also said you really should not look down your barrel as what you see will most likely not be a pretty sight.

The stock Sako barrel seem to be a thin barrel given that it heats up quickly. I'll bet when it's used in a military application they replace the barrels at 3000 rounds, that's my guess. Hammerforged barrels should be super cheap to produce once the maker has the expensive equipment to make them.

 

[SilentStalkr]

Re: TRG-22 rebarrel question

So, you are telling me a Sako Barrel is only good for 3000 rounds? That is a little hard to believe. I would not call them thin either but if I had cracking of any kind on my barrel and I knew about it then it would be replaced. To me that is kind of a safety thing. I am not quite sure how a hammerforged barrel just cracks either, heat or no heat. I think I might have someone else look at that first. I was also unaware that we would not be able to run a suppressor without rethreading the barrels. Hmmmm....

 

[ronas]

Re: TRG-22 rebarrel question

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">So, you are telling me a Sako Barrel is only good for 3000 rounds?</div></div>
No I’m telling you my experience. Many factors effect barrel life

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">I would not call them thin either but if I had cracking of any kind on my barrel and I knew about it then it would be replaced.
To me that is kind of a safety thing</div></div>.

Sako barrel is thin compared to #17 contour Krieger heavy varmint barrel on my other long range rifle. A small amount of visable heating cracking is not a safety issue or necessarily an accuracy issue. My gunsmith is Robert Gradous and I know he would have advised me if there was anything to be concerned about.


<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">I was also unaware that we would not be able to run a suppressor without rethreading the barrels. Hmmmm..</div></div>

Sako muzzel is threaded for metric threads, whereas nearly all others are fractional. I want to use same suppressor for all rifles.

 

[SilentStalkr]

Re: TRG-22 rebarrel question

I got you. Sorry if the post seemed rude in any way. That was not my intent. I am still learning here. Thanks for the info mate.

 

[ronas]

Re: TRG-22 rebarrel question

No problem.

 

[lestersurv]

Re: TRG-22 rebarrel question

Might want to study-up on the way barrels of chrome-moly and stainless wear.

The cracking previously related has minimal effect on accuracy in a c-m barrel as the steel hangs together and rifling/lands remain smooth (relatively). Stainless barrels tend to develop voids as they wear and these grab jacket material and disrupt bullet transition. C-M steel of match grade has many benefits.

Should easily see 5000rd barrel life from almost any .308win, many lasting much longer. Of course, if you are firing rounds w/o allowing barrel to cool, once has heated up; and don't clean properly you'll lose barrel longevity.

If I was very concerned about barrel life in a .308, I'd be looking for a FN-Herstal bolt gun with match grade, chrome-lined barrel. Find one of those with a McMillan stock and Near picatinny rail and you are ahead of the TRG-22 imho. TRG-42 is another matter entirely.

Lots of info on the web about how barrels wear. Lilja, McMillan, and Shilen come to mind. Might also see what you can find in Precision Shooting magazine archives or their Benchrest Primer book. Crocodile barrel wear (cracking) of C-M steels is much less accuracy impacting than that of SS barrels.