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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Stability Formula for Aluminum Tipped Bullets (Spreadsheet linked)
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<blockquote data-quote="Michael Courtney" data-source="post: 995426" data-attributes="member: 28191"><p>A few comments are in order, given the varied techniques used to produce aluminum tipped bullets.</p><p></p><p>The accuracy of the stability formula depends on a quality made bullet. Corbin sells the aluminum bullet tips, and we are aware that a number of amateur bullet makers are making these bullets, either with the Corbin dies or by modifying an existing off-the-shelf bullet to accept the new tip. </p><p></p><p>If the manufacturing process disturbs the bullet symmetry so that the center of gravity is no longer along the bullet axis, the bullet will be much less stable than expected. Further, a noticeable seam or shoulder where the base of the tip meets the main body of the bullet will create much greater drag at the front of the bullet, thus increasing the overturning moment and reducing SG.</p><p></p><p>If your bullets are made with the same quality as the 50 cal AMAX and the better custom makers that are using Corbin's aluminum tips, you can expect the stability calculator to provide accurate results.</p></blockquote><p></p>
[QUOTE="Michael Courtney, post: 995426, member: 28191"] A few comments are in order, given the varied techniques used to produce aluminum tipped bullets. The accuracy of the stability formula depends on a quality made bullet. Corbin sells the aluminum bullet tips, and we are aware that a number of amateur bullet makers are making these bullets, either with the Corbin dies or by modifying an existing off-the-shelf bullet to accept the new tip. If the manufacturing process disturbs the bullet symmetry so that the center of gravity is no longer along the bullet axis, the bullet will be much less stable than expected. Further, a noticeable seam or shoulder where the base of the tip meets the main body of the bullet will create much greater drag at the front of the bullet, thus increasing the overturning moment and reducing SG. If your bullets are made with the same quality as the 50 cal AMAX and the better custom makers that are using Corbin's aluminum tips, you can expect the stability calculator to provide accurate results. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Stability Formula for Aluminum Tipped Bullets (Spreadsheet linked)
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