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Re-chamber question
#5673613
03/28/15 06:37 PM
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Joined: Feb 2013
Posts: 1,389
BassCat'99
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You have a quality barrel chambered for .308 win. Could you re-chamber for the .300 BO?
22 Creedmoor
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Re: Re-chamber question
[Re: BassCat'99]
#5673621
03/28/15 06:46 PM
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Joined: Sep 2012
Posts: 1,938
Classic Rocks
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Not that I am aware of. Or at least not with out some sort of insert.
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Re: Re-chamber question
[Re: BassCat'99]
#5673624
03/28/15 06:47 PM
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Joined: Apr 2010
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dee
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If there is enough shank material left since the original chamber will have to be cut off.
"A vote is like a rifle; it's usefulness depends on the character of the user" Theodore Roosevelt
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Re: Re-chamber question
[Re: BassCat'99]
#5673636
03/28/15 07:08 PM
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Joined: Feb 2013
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BassCat'99
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I think so, I thought that the case diameter would be the problem.
22 Creedmoor
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Re: Re-chamber question
[Re: BassCat'99]
#5673656
03/28/15 07:45 PM
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Joined: May 2009
Posts: 2,016
SingleShot85
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Case diameter makes no difference, as long as you have enough room to cut and rethread you are gtg.
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Re: Re-chamber question
[Re: BassCat'99]
#5673684
03/28/15 08:14 PM
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Joined: Feb 2013
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BassCat'99
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Are you sure? Seems to me the case will rattle around in there.
22 Creedmoor
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Re: Re-chamber question
[Re: BassCat'99]
#5673762
03/28/15 10:00 PM
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Joined: Nov 2012
Posts: 840
10ring
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I don't see how it could be done the .308 case is quite a bit larger in diameter than the 300blk. The bore is obviously the same but the chamber dimensions are way different. It wouldn't be as easy as just shortening a 308 chamber to the length of 300blk. "I don't think", maybe someone would have another way of looking at it.
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Re: Re-chamber question
[Re: BassCat'99]
#5673798
03/28/15 10:25 PM
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Joined: Jan 2009
Posts: 19,253
Judd
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You cut the entire chamber off and start with a fresh barrel. That is why they asked about the barrel diameter. It can be done depending on the barrel contour.
Don't let your ears hear what your eyes didn't see, and don't let your mouth say what your heart doesn't feel
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Re: Re-chamber question
[Re: BassCat'99]
#5673835
03/28/15 11:14 PM
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Joined: Jun 2011
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Buzzsaw
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HUH???
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Re: Re-chamber question
[Re: Judd]
#5673855
03/28/15 11:37 PM
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Joined: Dec 2008
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J.G.
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You cut the entire chamber off and start with a fresh barrel. That is why they asked about the barrel diameter. It can be done depending on the barrel contour. If you had enough shank you could make that 308 Win barrel into a 300 B.O., .30-06, .300 Win Mag, 300 Rem Ultra Mag. Still a thirty caliber barrel.
Last edited by FiremanJG; 03/28/15 11:40 PM.
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Re: Re-chamber question
[Re: 10ring]
#5673867
03/28/15 11:52 PM
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Joined: May 2012
Posts: 8,383
nsmike
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I don't see how it could be done the .308 case is quite a bit larger in diameter than the 300blk. The bore is obviously the same but the chamber dimensions are way different. It wouldn't be as easy as just shortening a 308 chamber to the length of 300blk. "I don't think", maybe someone would have another way of looking at it. Let's try a little different way of explaining it. If there is enough barrel thickness ahead of the current chamber, that portion can be cut off leaving you with an unchambered rifled barrel. You would then have to cut new threads and a new chamber. It will not work with most barrel tapers but with an untapered barrel it can be done as long as it's not excessively shortened.
for every stereotype there's a prototype don't be the prototype
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Re: Re-chamber question
[Re: nsmike]
#5673879
03/29/15 12:06 AM
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Joined: Nov 2012
Posts: 840
10ring
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I don't see how it could be done the .308 case is quite a bit larger in diameter than the 300blk. The bore is obviously the same but the chamber dimensions are way different. It wouldn't be as easy as just shortening a 308 chamber to the length of 300blk. "I don't think", maybe someone would have another way of looking at it. Let's try a little different way of explaining it. If there is enough barrel thickness ahead of the current chamber, that portion can be cut off leaving you with an unchambered rifled barrel. You would then have to cut new threads and a new chamber. It will not work with most barrel tapers but with an untapered barrel it can be done as long as it's not excessively shortened. 10-4... I got ya. I can see where that works. I didn't consider cutting the chamber completely off and starting fresh. "If the barrel contour allowed it".
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Re: Re-chamber question
[Re: BassCat'99]
#5673936
03/29/15 12:53 AM
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Joined: Jun 2011
Posts: 33,977
Buzzsaw
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so being devils advocate, sorry drunk trolling But WTF??? Wouldn't it be cheaper to buy an new barrel. if BOLT GUN....DOUBLE wtf??? stick with .308 or buy a .300 BO in an AR platform for which it was intended Or are you just posting to see how many people read this??? again sorry let's talk about something cool.................
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Re: Re-chamber question
[Re: BassCat'99]
#5674014
03/29/15 01:58 AM
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Joined: Feb 2013
Posts: 1,389
BassCat'99
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Hey Buzz WTF I have asked a legit question and you call that a responsible intelligent answer? If ya don't have constructive advice keep it to your self.
22 Creedmoor
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Re: Re-chamber question
[Re: BassCat'99]
#5674156
03/29/15 03:47 AM
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Joined: Sep 2009
Posts: 18,954
ChadTRG42
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Can it be done, sure. Can it be done with your barrel? A gunsmith would have to take some measurements and see how long your barrel chamber area is. Also, if the rifle is a 308, you will have to change out the bolt face to a 223 bolt face. Plus any magazine changes. If you look at the "B" lengths at the link below, this is what will determine if you can rechamber it or not. http://www.bartleinbarrels.com/contours.htm
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Re: Re-chamber question
[Re: BassCat'99]
#5674196
03/29/15 04:38 AM
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Joined: Feb 2013
Posts: 1,389
BassCat'99
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Re: Re-chamber question
[Re: BassCat'99]
#5674355
03/29/15 01:38 PM
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Joined: Sep 2011
Posts: 1,053
bo3
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Why not just shoot subs out of the 308? You might want to check the barrel twist if you plan on shooting subsonic loads. Most factory barrels will not have a tight enough twist for heavy subsonic bullets.
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Re: Re-chamber question
[Re: bo3]
#5674498
03/29/15 03:40 PM
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Joined: Jun 2014
Posts: 691
Anton Chigurh
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Why not just shoot subs out of the 308? You might want to check the barrel twist if you plan on shooting subsonic loads. Most factory barrels will not have a tight enough twist for heavy subsonic bullets. +1 if subsonic suppressed is what OP is after, and the twist rate will work. In a bolt gun, it makes way more sense to me to do a 308 w/subs and still have a rifle that'd be useful with normal supersonic loads.
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Re: Re-chamber question
[Re: BassCat'99]
#5674629
03/29/15 05:19 PM
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Joined: Jan 2012
Posts: 9,273
blackcoal
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The Greatest Enemy of knowledge is not ignorance, it is the illusion of knowledge.--Stephen Hawking
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Re: Re-chamber question
[Re: BassCat'99]
#5674632
03/29/15 05:20 PM
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Joined: Jun 2011
Posts: 33,977
Buzzsaw
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Sorry BassCat
rough night last night
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Re: Re-chamber question
[Re: BassCat'99]
#5674651
03/29/15 05:44 PM
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Joined: Feb 2013
Posts: 1,389
BassCat'99
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