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  #1  
Old 01-08-2019, 7:19 AM
baih777 baih777 is offline
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Default Rechamber 308 to 30-06 ?

can I just buy a 30-06 reamer and rechamber a 308 heavy barrel to 30-06 ?
30-06 is a tapered case.
thinking about doing this for a savage rifle in 30-06 to have a heavy barrel.
instead of buying a new barrel .
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Old 01-08-2019, 7:32 AM
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Not without setting the barrel back over half the chamber length. 308 shoulder/body junction is larger in diameter than 30-06 and will leave a ring at that point.
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Old 01-08-2019, 8:33 AM
baih777 baih777 is offline
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Thank you.
I was afraid of something like that.
My calculations showed me it was real close.
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Old 01-08-2019, 10:18 AM
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Could you get away with a rechamber to 30-06 Ackley Improved?
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Old 01-08-2019, 11:11 AM
baih777 baih777 is offline
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Quote:
Originally Posted by justMike View Post
Could you get away with a rechamber to 30-06 Ackley Improved?
I don't think so. the case is tapered to the neck.
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Old 01-08-2019, 11:43 AM
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Quote:
Originally Posted by justMike View Post
Could you get away with a rechamber to 30-06 Ackley Improved?

It would depend on who's "Ackley" you have. It may be possible. 3006 Ack is not standardized and the dimensions are all over the place. You will have to get the drawing for the reamer you are using, a SAAMI 308 chamber drawing, and do some calculatin'.

The 280 Ackley is the only Ackley chamber standardized by SAAMI.
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Old 01-08-2019, 2:27 PM
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Quote:
Originally Posted by justMike View Post
Could you get away with a rechamber to 30-06 Ackley Improved?
Quote:
Originally Posted by baih777 View Post
I don't think so. the case is tapered to the neck.
Quite often, you can, but it depends on how big your specific 308 chamber is.
I have had a 30-06 ackley reamer clean out a 308 chamber.
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Old 01-08-2019, 3:34 PM
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I have just one question, WHY?

Not much you can do with a 30/06 that you can't with a 308.

IMHO, the only way you would gain anything with the '06 is if you had a faster twist to shoot the long VLD bullets. Your factory 308 barrel is prob a 1:10 twist, it will do anything you can do with a '06

Just curious about your thinking on this? And I am not attacking you, just asking.

Randy
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Old 01-08-2019, 4:16 PM
baih777 baih777 is offline
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I was given a 5 gallon bucket of 30-06 brass. I can buy his savage 30-06 cheap.
But I want a heavy barrel. Just a range toy.
I have a lot of 168hpbt bullets. 30 caliber.

Already have a 300 win.
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Old 01-08-2019, 4:24 PM
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Quote:
Originally Posted by baih777 View Post
I was given a 5 gallon bucket of 30-06 brass.
I can buy his savage 30-06 cheap.
But I want a heavy barrel. Just a range toy.
I have a lot of 168hpbt bullets. 30 caliber.

Already have a 300 win.
You might have a reloading problem when you buy a gun to use brass that someone gave you.
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Old 01-08-2019, 4:37 PM
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Wouldn't you have a problem with the receiver or magazine i.e. Long action / short action too?
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Old 01-08-2019, 7:23 PM
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Quote:
Originally Posted by UberPatriot View Post
Wouldn't you have a problem with the receiver or magazine i.e. Long action / short action too?
Depends on the action.
Some receivers use a long action for everything and just change the magazine and bolt stop for short action cartridges.
In that case, you could just get the proper magazine and bolt stop to switch back and forth between short and long action cartridge families.
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Old 01-08-2019, 8:10 PM
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Quote:
Originally Posted by UberPatriot View Post
Wouldn't you have a problem with the receiver or magazine i.e. Long action / short action too?
It depends on how old the Savage is. The early Savage 110s were built on one size action that would fit a 30.06, magazines with spacers were used for the short action chamberings.
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Old 01-13-2019, 9:56 AM
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There is more to it than just re-chambering.

IF you have a long action 308 you could remove the magazine spacer, replace or modify the bolt stop, and replace the follower and spring then buy a new barrel. The new barrel headspaces by screwing it in and out and setting the barrel nut. So, that aspect is a point in favor of the savage system.


Another option would be to sell your '06 brass and put the money toward nice new 308 brass. 308 is a slightly better cartridge anyway.

Adding to the cost is 30-06 dies.

Lots of new guns have been bought because someone stumbled into a bunch of ammo or brass. Probably not a great justification. Do you know the brass is good quality? Often, old brass develops neck splits.
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  #15  
Old 01-13-2019, 10:05 PM
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Word of advice-

Keep the brass. Keep the gun.

As you get older and buy more crap, you'll have more .308s and '06s to play with anyways.

You're on calguns. This is just a matter of time.
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  #16  
Old 01-14-2019, 5:17 AM
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Quote:
Could you get away with a rechamber to 30-06 Ackley Improved?
To clean up the 308W chamber the reamer must be .014" larger in diameter than 308w chamber at the case body/shoulder juncture. And then there are other mistakes made by many smiths that go unnoticed by reloaders.

F. Guffey
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Old 01-14-2019, 6:19 AM
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What makes it better? I always thought it was just different. For reloading I've been under the impression that there is far more load data for 30-06 and for me that is better.

Quote:
Originally Posted by Scota4570 View Post

Another option would be to sell your '06 brass and put the money toward nice new 308 brass. 308 is a slightly better cartridge anyway.
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  #18  
Old 01-15-2019, 6:56 PM
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Better is subjective.

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  #19  
Old 01-21-2019, 10:22 AM
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Yes, I think slightly longer range, slightly more downrange velocity & energy and far more reloading possibilities make the old 30-06 better. I'm not too concerned about compatability with NATO bloc countries and if reports are true neither is the Army anymore with the talk of a change in service rifle cartridge. The brass is now thinking something is "better than" 5.56 or 7.62 NATO
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Old 01-24-2019, 9:40 AM
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Quote:
Originally Posted by peterinsj View Post
What makes it better? I always thought it was just different. For reloading I've been under the impression that there is far more load data for 30-06 and for me that is better.
Both are fine cartridges.

308

-On average more accurate. That is why match shooters switched from '06 to 308 when it became available. It was developed to replace the "06 for the military. They did not do that arbitrarily.

-Shorter bolt throw, in the real world of high stress shooting it matters. Short stroking happens.

-Velocity difference is insignificant with bullets under 180 grains.

"The brass is now thinking something is "better than" 5.56 or 7.62 NATO" I have always thought a 25-ish caliber short case round would be excellent since the 5.56 was adopted. The 6.5 Grendel looks pretty good to me.

Last edited by Scota4570; 01-24-2019 at 9:44 AM..
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  #21  
Old 01-27-2019, 2:48 PM
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I’ve had 30-06’s, .308’s & 7.62’s. I developed my own loads for each and found no significant difference in accuracy with any. I have never used factory ammunition in any of these calibers, that might be significant.

Currently I have two 30-06’s and no .308 or 7.62 rifles. I might get an M1A if the price is right.
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