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Rifles, Reloading, Optics, Equipment
Reloading
Redding bushing dies
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<blockquote data-quote="QuietTexan" data-source="post: 2570186" data-attributes="member: 116181"><p>Actually the opposite is true - a false lower reading is common if the stem of the dial is deflecting in the same direction the case is rotating in, or if the change in the surface being measured is less than the response range of the dial.</p><p></p><p>The true runout could be double, triple, or infinity more (in the case of a zero reading) than is indicated by the Hornady tool because of the poor quality of the dial the tool ships with. Put a Mitu dial into the tool and the readings will likely be different. Mount a test indicator on a stand next to the tool and you'll also get different readings.</p><p></p><p>A big selling point of "correcting" runout with the Hornady tool is a fool's errand to being with. It's a broken concept in that it literally relies on the assumption that the cartridge on the tool is broken and in need of fixing, and the solution of using the jack screw to move the bullet in turn is a poor solution that is an attempt to cover up the real problem. Run out is corrected by not inducing it in the first place - nudging a bullet does more harm than good, and still doesn't address the root issue.</p><p></p><p>This is all predicated on caring about runout. Once you get to a point you have essentially none, it becomes something you maybe spot check on occasion. But you don't get to there relying on poor tools that don't tell the truth, or half-way solutions of nudging bullets and ignoring root causes.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2570186, member: 116181"] Actually the opposite is true - a false lower reading is common if the stem of the dial is deflecting in the same direction the case is rotating in, or if the change in the surface being measured is less than the response range of the dial. The true runout could be double, triple, or infinity more (in the case of a zero reading) than is indicated by the Hornady tool because of the poor quality of the dial the tool ships with. Put a Mitu dial into the tool and the readings will likely be different. Mount a test indicator on a stand next to the tool and you'll also get different readings. A big selling point of "correcting" runout with the Hornady tool is a fool's errand to being with. It's a broken concept in that it literally relies on the assumption that the cartridge on the tool is broken and in need of fixing, and the solution of using the jack screw to move the bullet in turn is a poor solution that is an attempt to cover up the real problem. Run out is corrected by not inducing it in the first place - nudging a bullet does more harm than good, and still doesn't address the root issue. This is all predicated on caring about runout. Once you get to a point you have essentially none, it becomes something you maybe spot check on occasion. But you don't get to there relying on poor tools that don't tell the truth, or half-way solutions of nudging bullets and ignoring root causes. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Redding bushing dies
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