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Rifles, Reloading, Optics, Equipment
Reloading
Bullet runout what is the max?
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<blockquote data-quote="Mikecr" data-source="post: 643219" data-attributes="member: 1521"><p>What 'we commonly' do is usually wrong..</p><p>The misnomer in cartridge measurement today is CONCENTRICITY.</p><p>For example, the Sinclair tool Bart showed is merchandised as a concentricity tool, but it is a runout gauge.</p><p>Runout is the sum of all evils, and has nothing to do with any centerline.</p><p>It is most useful(moreso than eccentricity), because it's low TIR that implies a quality of 'straightness' in our loaded ammo that typical concentricity gauges(ammo benders) can not. And if you get your ammo straight, it is also then as concentric as you're going to get it(won't even indicate on an ammo bender).</p><p></p><p>I measure just like Bart(off forward bullet noses) until I'm below 1thou of TIR.</p><p>Ammo can be made this well with efforts and a plan to do so.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 643219, member: 1521"] What 'we commonly' do is usually wrong.. The misnomer in cartridge measurement today is CONCENTRICITY. For example, the Sinclair tool Bart showed is merchandised as a concentricity tool, but it is a runout gauge. Runout is the sum of all evils, and has nothing to do with any centerline. It is most useful(moreso than eccentricity), because it's low TIR that implies a quality of 'straightness' in our loaded ammo that typical concentricity gauges(ammo benders) can not. And if you get your ammo straight, it is also then as concentric as you're going to get it(won't even indicate on an ammo bender). I measure just like Bart(off forward bullet noses) until I'm below 1thou of TIR. Ammo can be made this well with efforts and a plan to do so. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Bullet runout what is the max?
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