barrel shank question

[glider]

Why do barrel makers use different shank diameters and lengths for same contours for example m24
Is there a relation ship between,shank length and round to be chambered ?

 

[L.Sherm]

Dia. have alot to do with what type of action your using, Rem,Savage,CZ etc. Length is alot of personal preference or what your intended use is for and cartridge type.

 

[walt willis]

Each gun maker seems to favor what they believe to be the best, but if you shoot to be accurate you may want to ask the best shooters what works the best.

 

[MClark]

On barrels, such as on varmint rifles, where the it will set back because of throat erosion I leave a long shank.
On ultramags and similar cartridges I leave the max diameter out past the case shoulder.

Mark

 

[hoz53]

On barrels, such as on varmint rifles, where the it will set back because of throat erosion I leave a long shank.
On ultramags and similar cartridges I leave the max diameter out past the case shoulder.

Mark

Call me cynical or whatever. I think some of the major manufacturers don't leave much shank so you can't set them back. I have R700 varmint rifle I'd like to set back. Not cause I have shot it so much but because the chamber is so crooked, but not enough shank to do that.

 

[glider]

What I have been considering is how much shank is needed for a 260 Imp 30 . I am also thinking long term its cheaper too rechamber same bbl twice .

If using a Krieger HV 29" cut 1" at shank and 1" at muzzle this leaves appx. 27" finished bbl. So later on If 1" needs to be cut off for a new chamber then bbl would be 26" .

Also is shank length considered for a specific chamber? For example 6.5 SAUM seems like it could use more material than a a 6.5x47L ? with .264s there are many options and different size cartridges.

 

[hoz53]

What I have been considering is how much shank is needed for a 260 Imp 30 . I am also thinking long term its cheaper too rechamber same bbl twice .

If using a Krieger HV 29" cut 1" at shank and 1" at muzzle this leaves appx. 27" finished bbl. So later on If 1" needs to be cut off for a new chamber then bbl would be 26" .

Also is shank length considered for a specific chamber? For example 6.5 SAUM seems like it could use more material than a a 6.5x47L ? with .264s there are many options and different size cartridges.

Well sorry I don't know much so I can't help you much. I would borescope a barrel before re chambering to see how far I wanted to clean up the throat area. Taking some measurements on the case you can see how much it takes to clean up the chamber. If I was a competitor I wouldn't use a re chambered barrel at matches except mabie some local fun shoots. If I had to pay 200 to get a 300 dollar barrel re chambered that I had all ready got several thousand rounds out of id use it for pillars instead.