Gunsmithing Barrel change question.

jkgts1

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Minuteman
Jan 19, 2020
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Hello everyone first post here. I have quick question. I have a Rem 700 chambered in 308win. I had the rifle rebarreled by a smith many years ago. So, would I be able to put a remage barrel on when I need a new barrel? I did have the action trued when I had the new barrel installed. I'm asking because I have been seeing people post that the remage prefits will not work if you had an aftermarket barrel put on. I think its something about the smith opening up the threads in the action. Im no longer in contact with the smith that did the work, so I cannot ask him. Thoughts?
 
Hello everyone first post here. I have quick question. I have a Rem 700 chambered in 308win. I had the rifle rebarreled by a smith many years ago. So, would I be able to put a remage barrel on when I need a new barrel? I did have the action trued when I had the new barrel installed. I'm asking because I have been seeing people post that the remage prefits will not work if you had an aftermarket barrel put on. I think its something about the smith opening up the threads in the action. Im no longer in contact with the smith that did the work, so I cannot ask him. Thoughts?
As long as he didn’t change the thread size you are good to go
 
So, if he did change the thread size would the new remage barrel have a sloppy fit? Is changing the thread size common practice when rebarreling?
 
So, if he did change the thread size would the new remage barrel have a sloppy fit? Is changing the thread size common practice when rebarreling?
Guys who have tried to run remages on receivers that have been rethreaded during the truing process have run into issues with the barrels being off axis (sloppy threads) and that lead to huge windage issues. Not all smiths will open up the receiver threads, you might be good to go. You can pull your barrel and measure the threads to see if they are oversized or not.
 
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The ten thou over is an attempt to "standardize" the process of re-cutting the threads so that aftermarket, "oversize" threaded barrels can be used. Many receivers will clean up with much less than that, so a smith that's single-pointing might simply stop when he reaches that depth absent a directive otherwise. The reamers/taps offered by Manson and PTG for this process are ten over to assure that a "worst case" scenario gets cleaned up. As said, you'd need to pull the barrel and measure the OD of the threads to get an idea of what was/was not done.
 
You are going to need a barrel vice and action wrench, regardless of the outcome.
You can reinstall the old barre, with the old recoil lug and not worry about headspace.
remove the current barrel and measure the OD of the shank with a set of calipers.
If it is no more than 1.062", it is standard size (likely a little less).