How practical would it be to turn down the rear end (0.26") of a Savage Axis 25-06 factory barrel and rechanmber to 257AI? Would there be any problems mounting it back on action?

You would have to thread the barrel the amount you took off which would be no real problem and then run a reamer. Perhaps $120 - $150 from a practical standpoint.

quote:

Originally posted by Fat_Albert:
How practical would it be to turn down the rear end (0.26") of a Savage Axis 25-06 factory barrel and rechanmber to 257AI? Would there be any problems mounting it back on action?

Since the 257 AI is a reloading proposition, why not just load the 25-06 to 257 AI velocities?

The 25-06 is a overbored case (too large for caliber to be effient). Overbore cases don't do well in downloading.

Not practical at all. The two are ballisticly very close. The 25/06 you can get at walter martinez, the 257 is a handload or expensive ammo option only.

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The 25-06 is a overbored case (too large for caliber to be effient

You planning of loading to Roberts pressure or modern pressure. Just looking at QL

63,000 max in a 24" 257R 51.8grs RL19 3163fps
25-06 55grs RL 19 3164fps

You are going to have to shoot a heck of a lot to make up the cost of setting the barrel back and rechambering at 3grs of powder per shot.

The name of this forum is GUNSMITHING not WHAT CARTRIGE I SHOULD USES. I asked for input on doing the change not everyones OK to do it.

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The name of this forum is GUNSMITHING not WHAT CARTRIGE I SHOULD USES. I asked for input on doing the change not everyones OK to do it

You are 100% correct. Your rifle your $$.

I would check your numbers again. I believe you will need to move the barrel back more than the .257"(your .26" reference) difference in case length. I think the shoulder neck junction will require more like .275+" setback.

yes, it can be done .. and you'll likely wind up with a shooter -- I would go .300 back, a smidge more than ramrod suggested, to be certain to have a new throat on back...

mind if i ask why you want to step back a bit in case capacity?

quote:

Originally posted by jeffeosso:
mind if i ask why you want to step back a bit in case capacity?

Seems like he already stated why:

quote:

Originally posted by Fat_Albert:
The 25-06 is a overbored case (too large for caliber to be effient). Overbore cases don't do well in downloading.

Sometimes by golly, you just want to because, well, you want to.

A customer wanted me to set back the barrel on his Savage varmint rifle because of a worn throat. I found out that it couldn't be done. The barrel was tapered the entire length. The thread for the barrel nut runs out of barrel as you go forward.

If your rifle is a sporter, it may be different. Be sure to check that before you start.

quote:

Originally posted by M Pursell:
A customer wanted me to set back the barrel on his Savage varmint rifle because of a worn throat. I found out that it couldn't be done. The barrel was tapered the entire length. The thread for the barrel nut runs out of barrel as you go forward.

In this case what you might want to look at then, and I don't have one here at the moment to examine, is if enough material can be removed from the barrel nut to get you there.

On a barrel I have laying in the shop. I am getting about a .010" smaller diameter .5" ahead of the threads. So not bad as that area would be under the lock nut and not used at all except for backing the nut off.
My locking nut also has about 3/8" of clearance of the threads on the front of the nut.

Thanks much for info.

It would certainly be more direct and probably cheaper to start from scratch with a new barrel

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