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<blockquote data-quote="AkleyFan" data-source="post: 2977188" data-attributes="member: 114323"><p>My proven solution is using the Mauser thread die (eBay - seller is in Austraila) and tap (Brownell&#039;s - this tap works more like a bottom tap than the others I&#039;ve seen) set I aquired for this purpose. I purchase prefit barrels and use the die (you can adjustable diameter) to bring the major diameter of the barrel tenon thread down to my desired fitment tolerance. Works like a charm. I also use the tap to cut the receiver threads to a consistent diameter - but I only do this when I find significant difference in the full length of the receiver threads AND I have a barrel with threads at or over 1.1&quot; - the tap cuts to 1.1&quot; I want a slight interference fit. Each of my many no-lathe Mauser builds shoot sub-moa with hand loads so I have no reason to pester my gunsmith to cut barrel threads or face off my receiver when I can spec the tenon depth and such when I purchase a barrel from McGowen spun to my needs, and hand fit after it arrives. Flip the die around after using the tapered cuttng side to start the cut in order to get the threads cut all the way back to the end of the barrel tenon - gently touch the barrel shoulder so you don&#039;t ding it up. Repeat until you&#039;ve got the diameter you need - so obviously you need to make small adjustments so you don&#039;t over cut the threads and get a sloppy fit/poorly aligned barrel/receiver. PM me if you need more details. You also need to ensure the tenon length on the barrel is correct for the receiver - there are hand tools to correct this as well, as long as the receiver is longer in depth than the barrel tenon length - if it isn&#039;t then you will need to have the barrel tenon cut shorter and this is where you will need a gunsmith&#039;s expertise and a chamber reamer, and so you may as well have the GS do all the fitment tasks and call it a day. You may need a chamber reamer regardless. Other very experienced members can offer additional guidance. Welcome to the &quot;Mauser Loonies&quot; club.</p></blockquote><p></p>

[QUOTE="AkleyFan, post: 2977188, member: 114323"] My proven solution is using the Mauser thread die (eBay - seller is in Austraila) and tap (Brownell's - this tap works more like a bottom tap than the others I've seen) set I aquired for this purpose. I purchase prefit barrels and use the die (you can adjustable diameter) to bring the major diameter of the barrel tenon thread down to my desired fitment tolerance. Works like a charm. I also use the tap to cut the receiver threads to a consistent diameter - but I only do this when I find significant difference in the full length of the receiver threads AND I have a barrel with threads at or over 1.1" - the tap cuts to 1.1" I want a slight interference fit. Each of my many no-lathe Mauser builds shoot sub-moa with hand loads so I have no reason to pester my gunsmith to cut barrel threads or face off my receiver when I can spec the tenon depth and such when I purchase a barrel from McGowen spun to my needs, and hand fit after it arrives. Flip the die around after using the tapered cuttng side to start the cut in order to get the threads cut all the way back to the end of the barrel tenon - gently touch the barrel shoulder so you don't ding it up. Repeat until you've got the diameter you need - so obviously you need to make small adjustments so you don't over cut the threads and get a sloppy fit/poorly aligned barrel/receiver. PM me if you need more details. You also need to ensure the tenon length on the barrel is correct for the receiver - there are hand tools to correct this as well, as long as the receiver is longer in depth than the barrel tenon length - if it isn't then you will need to have the barrel tenon cut shorter and this is where you will need a gunsmith's expertise and a chamber reamer, and so you may as well have the GS do all the fitment tasks and call it a day. You may need a chamber reamer regardless. Other very experienced members can offer additional guidance. Welcome to the "Mauser Loonies" club. [/QUOTE]

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