Rechambering - 6.5x47 to 6.5x284?

[AKShooter]

So I got a carbon six barrel. It is carbon wrapped. It is a remage barrel, with the nut. And is chambered in 6.5x47 lapua.

I'm thinking about rechambering to 6.5x284, if I can. I don't see why it would not work, but thought I'd float it here.

Thanks in advance for any input

 

[Scott Harris]

i dont see any reason why you couldnt

 

[ebb]

Carbon wrapped barrels are made to be light so the metal liner may be sized to provide enough strength for the 6.5-47 chambering and not for the bigger 6.5-284 chamber. the original maker would know or I guess you could Xray and see if it is big enough.

 

[Eddie Harren]

Carbon wrapped barrels are made to be light so the metal liner may be sized to provide enough strength for the 6.5-47 chambering and not for the bigger 6.5-284 chamber. the original maker would know or I guess you could Xray and see if it is big enough.

Better'n the funny papers.

 

[CTanM]

Carbon wrapped barrels are made to be light so the metal liner may be sized to provide enough strength for the 6.5-47 chambering and not for the bigger 6.5-284 chamber. the original maker would know or I guess you could Xray and see if it is big enough.

Huh?

 

[ebb]

Well eddy I am not the best with the English language so maybe I didn't come through. Let me try again. A carbon fiber barrel has a metal barrel inside that is machined to be small and light, then the carbon fiber is applied in some manner that adheres to the metal portion of the barrel. If the metal portion of the barrel is made so that it is as light as possible yet still will handle the pressure of the 6.5-47, it could be too thin to handle the pressure of the 6.5-284 as the 284 case is larger in diameter than the smaller 6.5-47 case. Carbon wrap barrels are all about light weight as I understand it and the metal part is not visible so how would you know if it is big enough to handle the pressure of the larger case if you can't even see it to measure? I maybe off base but cutting a bigger chamber into a barrel that has an unknown diameter seems a little dangerous. The 284 Winchester case had a maximum pressure of 54000 psi. I am sure that many are exceeding that as I am sure I am with mine and my loads are mild to what I see on the net. So are you telling us that chambering a barrel in a larger case than it may have been designed for is an idea that you recommend?

 

[Eddie Harren]

Well eddy I am not the best with the English language so maybe I didn't come through. Let me try again. A carbon fiber barrel has a metal barrel inside that is machined to be small and light, then the carbon fiber is applied in some manner that adheres to the metal portion of the barrel. If the metal portion of the barrel is made so that it is as light as possible yet still will handle the pressure of the 6.5-47, it could be too thin to handle the pressure of the 6.5-284 as the 284 case is larger in diameter than the smaller 6.5-47 case. Carbon wrap barrels are all about light weight as I understand it and the metal part is not visible so how would you know if it is big enough to handle the pressure of the larger case if you can't even see it to measure? I maybe off base but cutting a bigger chamber into a barrel that has an unknown diameter seems a little dangerous. The 284 Winchester case had a maximum pressure of 54000 psi. I am sure that many are exceeding that as I am sure I am with mine and my loads are mild to what I see on the net. So are you telling us that chambering a barrel in a larger case than it may have been designed for is an idea that you recommend?

Did the carbon wrapped barrel come with a set of restrictions on what cartridges it is suitable for? What if someone wanted to chamber a 6.5xRUM cartridge? Does the manufacturer rate the barrel by cartridge or not?
I don't believe you have a problem with the English language but, I do believe you are having a problem with logical reasoning.

 

[CTanM]

I order barrels by caliber.

Not cartridge.

As I think we all do.

A .243win uses the same barrel as a
6mm-06

Just a different chamber

And a 1.25 straight barrel can be turned down to a sporter weight and still safely shoot whatever cartridge I can dream up to stick in it.

A .223 Remington can be loaded to the same pressure as 7mm Remington magnum.

I’m not saying dip a huge reamer in your carbon fiber barrel. I’m saying that if it can’t be done someone needs to say why, And I will start a list of why I don’t want a carbon fiber wrapped barrel.

But I have seen magnum caliber rifles with carbon fiber barrels. I think you’re good to go.

 

[CTanM]

Well eddy I am not the best with the English language so maybe I didn't come through. Let me try again. A carbon fiber barrel has a metal barrel inside that is machined to be small and light, then the carbon fiber is applied in some manner that adheres to the metal portion of the barrel. If the metal portion of the barrel is made so that it is as light as possible yet still will handle the pressure of the 6.5-47, it could be too thin to handle the pressure of the 6.5-284 as the 284 case is larger in diameter than the smaller 6.5-47 case. Carbon wrap barrels are all about light weight as I understand it and the metal part is not visible so how would you know if it is big enough to handle the pressure of the larger case if you can't even see it to measure? I maybe off base but cutting a bigger chamber into a barrel that has an unknown diameter seems a little dangerous. The 284 Winchester case had a maximum pressure of 54000 psi. I am sure that many are exceeding that as I am sure I am with mine and my loads are mild to what I see on the net. So are you telling us that chambering a barrel in a larger case than it may have been designed for is an idea that you recommend?

Yes I recommend it....

I stick 6 ackley reamers in .243s all the time.

I get better velocity and I don’t have to trim my brass

 

[Milo 2.0]

Well eddy I am not the best with the English language so maybe I didn't come through. Let me try again. A carbon fiber barrel has a metal barrel inside that is machined to be small and light, then the carbon fiber is applied in some manner that adheres to the metal portion of the barrel. If the metal portion of the barrel is made so that it is as light as possible yet still will handle the pressure of the 6.5-47, it could be too thin to handle the pressure of the 6.5-284 as the 284 case is larger in diameter than the smaller 6.5-47 case. Carbon wrap barrels are all about light weight as I understand it and the metal part is not visible so how would you know if it is big enough to handle the pressure of the larger case if you can't even see it to measure? I maybe off base but cutting a bigger chamber into a barrel that has an unknown diameter seems a little dangerous. The 284 Winchester case had a maximum pressure of 54000 psi. I am sure that many are exceeding that as I am sure I am with mine and my loads are mild to what I see on the net. So are you telling us that chambering a barrel in a larger case than it may have been designed for is an idea that you recommend?

The 6.5x47 is a higher pressure case than the 6.5x284, by just under 4K, if no shank was removed on original chambering, it will be fine.

 

[ebb]

I see what you are saying. My confusion comes from the only carbon barrel I've ever seen (years ago) did not have the exposed shank that I am seeing at the Proof Research web site. It had 1/4 of stainless showing where it meet the receiver and that was all. After I saw it shot I knew I didn't want one and never looked any further. I was interested in them cause claims were made back then that the carbon pulled the heat out of the metal portion so well that they predicted that the carbon wrapped barrels would last longer. I never heard any more on that aspect so I lost interest.

 

[Milo 2.0]

I see what you are saying. My confusion comes from the only carbon barrel I've ever seen (years ago) did not have the exposed shank that I am seeing at the Proof Research web site. It had 1/4 of stainless showing where it meet the receiver and that was all. After I saw it shot I knew I didn't want one and never looked any further. I was interested in them cause claims were made back then that the carbon pulled the heat out of the metal portion so well that they predicted that the carbon wrapped barrels would last longer. I never heard any more on that aspect so I lost interest.

I hear you, but if you think about it, no barrel maker is going to ship a product with the likelihood of a catastrophic failure. Their ass needs to be covered. I've heard some extremely good remarks about Proof barrels, and have seen a couple that flat shoot. Carbon 6 company has been getting good reviews too, Christensen arms the usual.
I need to build my Godson a hunting rifle directly, and a Proof barrel is on the short list.

 

[swd]

I would re chamber it and not think twice about it. Except I'd think at twice about a 6.5x55Ackley over the 6.5x284 lol.

 

[AKShooter]

Thanks for the responses. 6.5x55? Great idea. Kind of forgot about that one. I should call carbon six too. Should have started there.