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  1. S

    Gunsmithing button rifle barrel mystery.. anyone want to weigh in

    well the mfg says that the twist is correct.. still don't know how I could pull a nylon brush backward through the barrel... 6 times.. 2 from the muzzle for 1 turn, 2 from there and 2 more times near the breach.. and all 6 times come up with balls on 8.5.. and do the same with my old barrel and...
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    Gunsmithing button rifle barrel mystery.. anyone want to weigh in

    Learn something every day.. thanks
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    Gunsmithing button rifle barrel mystery.. anyone want to weigh in

    thanks JR .. no more testing for me.. its back with the Mfg, they will have it tomorrow.. so now its up to them to tell me what is what.. by the by.. I didnt think anyone was making gain twist button rifles.. thought that had to be cut rifeling hence one of the selling points of a kreiger or...
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    Gunsmithing button rifle barrel mystery.. anyone want to weigh in

    @rth1800 was purchased direct from the mfg and the barrel is marked appropriatly .. so while I have seen shady stuff before.. I dont think that is the case here
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    308win-175 SMK "tactical tips" & Berger 185 Juggernaut's AR10 semi auto

    @ValkShooter the TMK changes so many variables.. most notably shifting the ogive back from the bullet tip.. looks like its a great combination.. experimentation sometimes pays off! DON’T TAKE ANYTHING FOR GRANTED! The bottom line is to deal in absolute fundamentals, measure them, and remove all...
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    Gunsmithing button rifle barrel mystery.. anyone want to weigh in

    or said another way.. if you were looking at a 8 inch spring and the coils were the helix that the button should follow. stretching the spring to 8.5 inches would be the angle change the button would have to impart vs what its cut for
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    Gunsmithing button rifle barrel mystery.. anyone want to weigh in

    @diverdon so you are going with a 8 button in a proper diameter blank.. just with the machine to twist at the wrong rate? that is my thinking as well.. but would that also contribute to the 'loose' bore or are we looking at 2 different dimensions that made it my QC? turning a modern button...
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    Gunsmithing button rifle barrel mystery.. anyone want to weigh in

    @DAVETOOLEY thanks for weighing in... its definitely not a button slip or anything like that.. its a solid, perfect, 8.5 everywhere in the barrel, muzzle, mid and breech.. and without a 8.5 button in their inventory, the 8 twist button was forced to turn 8.5, slower than its cut /angled...
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    Gunsmithing button rifle barrel mystery.. anyone want to weigh in

    I bought a 6.5 caliber remage barrel from a quality manufacturer of button barrels. it was supposed to be a 1/8 twist. after trying to break the barrel in it was not shooting well... and I already had the exact same barrel / caliber / etc from the same mfg just in a different contour...
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    Gunsmithing Gunsmiths that do Remage barrels?

    it is more than likely built up for a typical 1.2 to 1.25 should and can't be turned down to the 1 1/16 diameter for a remage setup without destroying it.. a remage barrel can be no thicker than the major of the barrel thread. if it were me I would sell it and buy a CF barrel that was mfg...
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    308win-175 SMK "tactical tips" & Berger 185 Juggernaut's AR10 semi auto

    @ValkShooter I am making more a general observation/statement that most folks are grossly over spending for 'long range accuracy' bullets for a platform that is neither long range or accurate enough to realize that potential 155TMK... intersting load.. I would think that due to the very...
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    308win-175 SMK "tactical tips" & Berger 185 Juggernaut's AR10 semi auto

    @ValkShooter yeah.. and what do the FGMM jugs (didn't know they loaded 185 burgers ) do for you that a 175smk can't from a 20" barrel... worth the cost? also.. while federal says there is no difference between fgmm 175 and fgmm 762 there is .. the fgmm 762 is basically civilianized mk316 and...
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    Magpul AICS 10 round mags??

    they all have their plus and minus.. and lets face it.. uncle sugar doesn't do something because its the best.. they do it for their own interest or the interest of their buddies that now work in industry .. personally .. what I like about the poly mags are the smoothness especially on bolt...
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    Magpul AICS 10 round mags??

    anyone heard if 'Uncle Sugar' has decided to allow these to become a cage part.. perhaps they bought several thousand
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    New Magnetospeed Mounting option

    oberseration from someone over on ar15.com --- no me https://www.ar15.com/forums/precision-rifles/Labradar-magnetospeed/10-6248/&page=2 Today I tried the Magnetospeed at 3:00, 6:00, 9:00, 12:00 and the point of impact shift was clearly related to the rotation of the bayonet. This suggests...
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    New Magnetospeed Mounting option

    what I am trying to impose on folks is that in the shooting community.. when bullets to funny things.. everyone always points to barrel harmonics.. but here I can clearly show that bullet interaction with nearby surfaces is a documented measurable force. it explains bullet shifts on barrels...
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    New Magnetospeed Mounting option

    @SLG I am pretty sure that way back over at arfcom and other ar specific boards... people have gone out and spent the money on 'off barrel' mounts just to find out that the vertical shift away from the bayonet is still present.. POI may have changed between on barrel and off... but a shift was...
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    New Magnetospeed Mounting option

    @Eric32 I think like just about everything that I have learned in long range shooting, and aerodynamics.. and in the military in general.. the answer is ' it depends' unfortunately there are just so many variables that effect internal and external ballistics that even if we took barrel...
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    New Magnetospeed Mounting option

  20. S

    Magneto Speed Alternate Mounting Options effectiveness.

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