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  1. D

    Gunsmithing Tight chamber?

    Understood. The 6GT reamer spec is fairly narrow as it is very new. only JGS & PTG are doing reamers for it and the prints are the same. Was just wondering if there was any reason for cutting a chamber at the far edge of the spec vs. the short edge.
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    Gunsmithing Tight chamber?

    Acording to the reamer spec using .350 gauge, the spec is 1.360” (min/max of R=1.360). That is precisely what I get when I measure the go gauge. When i measure my fired brass it comes in +/- .0005 of that spec. However I measured some fired brass that was 1.3645.
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    Gunsmithing Tight chamber?

    Well, when i chamber at go + half thou, my fired brass measures the same. I was just Wondering why a smith would chamber at go + .004.
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    Gunsmithing Tight chamber?

    Understood. It just seems to me that if virgin brass comes in at go spec or slightly less, that chambering .0005 from go would eliminate any stretch of the virgin brass. However, as I have measured some of the 6GT brass at a recent match, it is surprising to me to see chambers at .004 - .0045...
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    Gunsmithing Tight chamber?

    Is there a reason why you wouldn’t want to ream the chamber at go + .0005”?
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    Accessories SOLD

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    Accessories SOLD

    Updated
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    Accessories SOLD

    I do my own chambering. Precision Mathews PM1340 lathe JGS reamers; here is the print of 6BRA from Alex Wheeler:
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    Accessories SOLD

    Updated
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    Accessories SOLD

    Bartlein Blank is Sold. Thanks
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    Accessories SOLD

    Muller Works 7.5T 223 24” M24 contour muzzle threaded 5/8x24 chambered for 75g ELD’s 815rounds 24.0g 8208 75g ELD Match, 2940fps inscription on bottom of barrel when threaded on to action
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    Accessories SOLD

    SOLD: 1. 6.5 Bartlein Blank; 8T; M24; 27”. SOLD 6BRA Bartlein; 7T; 24” Impact Prefit; M24; $325shipped - Muzzle threaded 5/8x24 -300rounds -30.4g H4895; JLK 105’s; 2920fps. SOLD: 6.5 SAUM Bartlein; 7T; 24” Impact Prefit; M24 -273rounds -Muzzle threaded...
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    Accessories SOLD

    30cal 4 port PVA sold pending funds.
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    Accessories SOLD

    These are left: 1 - PVA Jet Blast; black nitride; 6mm; $85 shipped. 1 - PVA Mad Scientist: black nitride; 6.5/30cal 4 port; $75 shipped.
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    Accessories SOLD

    the last four Mad Scientist are sold.
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    Accessories SOLD

    Sold. Thanks all for looking.
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    Accessories SOLD

    Heathen is sold.
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    Accessories SOLD

    Here's a copy of the reamer spec from JGS. It was designed for the 75g ELD Match.
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    Accessories SOLD

    Mullerworks 7T M24 Barrel 24". 5/8x24 muzzle threaded Never fired. The. bottom side of the barrel is engraved as shown in the pic.
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    Accessories SOLD

    SideWinder sold pending funds.
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