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Thread: Pre 64 M70, cut extractor relief before or after chambering?

  1. 08-24-2016, 02:41 PM #1
    Clark
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    Pre 64 M70, cut extractor relief before or after chambering?

    Click image for larger version.  Name: Shilen select match stainless #3 barrel 25-06 pre 64 M70 8-24-2016.jpg  Views: 9  Size: 54.8 KB  ID: 175114

    I cut the cone and chamber in the lathe, where it is now, I just finished threads.

    I have a curved mill saw for cutting the extractor relief cut. I would do that in the mill.

    I hate to take the barrel out of the mill after it is all dialed in.
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  2. 08-24-2016, 03:23 PM #2
    M-Tecs
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    I prefer to cut the extractor relief last.
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  3. 08-24-2016, 03:56 PM #3
    Clark
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    Ok, thanks, I will do it that way.
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  4. 08-26-2016, 09:07 PM #4
    Clark
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    OK, I did it.
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  5. 08-28-2016, 08:55 AM #5
    Tokarev
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    Late to the show, but I would not want any irregularities in the barrel bore to interfere with chambering, so chamber first, cut the relief last.
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  6. 08-28-2016, 08:57 AM #6
    Clark
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    Click image for larger version.  Name: M70 8-27-2016 small.jpg  Views: 16  Size: 26.8 KB  ID: 175353
    Ready to shoot now.
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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check