Shank length necessary to set back the chamber/throat of 6mm Creedmoor after burning out the barrel?

[DocAutomatic]

I'm considering ordering a carbon fiber barrel chambered in 6mm Creedmoor. What sort of shank length would be necessary to be able to set back the chamber/throat to give the barrel a second life after it gets burned out the first time?

I have seen various uses of shank length, I typically think of it as the length from the very breech end of the barrel to wherever the profile changes from a pure cylinder (whether that be the start of the taper or carbon fiber wrap, whichever is first). So this would include the tenon threaded section. If you have a different take on what the shank is I would appreciate it if you could mention that along with your thoughts on the length necessary for a single rechambering, just so we can be on the same page as to what specific dimension we're talking about.

Also, I am not sure this matters for this discussion, but this would be a shouldered prefit for a Defiance Ruckus/AntiX/Classic action.

Thanks in advance for any help.

 

[oldrifleman]

Going to be the nay sayer here. You are spending 400 and up to maybe save 400. You really don’t know how much life is left in the barrel. Wear is most notable in the throat, but it extends through out the barrel. To me I would not gamble the cost to cut and rechamber a worn out barrel. It becomes a tomato stake at that point.

 

[Baron23]

I'm considering ordering a carbon fiber barrel chambered in 6mm Creedmoor. What sort of shank length would be necessary to be able to set back the chamber/throat to give the barrel a second life after it gets burned out the first time?

I have seen various uses of shank length, I typically think of it as the length from the very breech end of the barrel to wherever the profile changes from a pure cylinder (whether that be the start of the taper or carbon fiber wrap, whichever is first). So this would include the tenon threaded section. If you have a different take on what the shank is I would appreciate it if you could mention that along with your thoughts on the length necessary for a single rechambering, just so we can be on the same page as to what specific dimension we're talking about.

Also, I am not sure this matters for this discussion, but this would be a shouldered prefit for a Defiance Ruckus/AntiX/Classic action.

Thanks in advance for any help.

I’m not the most experience guy on here but I’ve never seen a carbon barrel with enough shank to set back.

 

[Mulepackhunter]

No chance on a carbon barrel on either end to make any changes. Thats why carbons are very risky for gunsmiths, way more money to replace and no room for error.

 

[moosemeat]

Not worth it. I did it to a 6 creed, turned it into a 6gt. Cut 3" of chamber end off. Shot great for 500 rounds. Then it died over the next 250. So 750 rounds total.
Remember, even the parts that don't look hammered have seen every bullet to. Seems to break down way faster the second time.
And 5" of shank seems right.

 

[DocAutomatic]

Ok fellas, I think you settled it for me, a cf barrel is one and done.