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  1. M

    Range Report Stability Formula for Aluminum Tipped Bullets (Spreadsheet linked)

    Most know that Don Miller published an accurate formula for computing gyroscopic stability of constant (or near constant) density bullets in 2005. This formula has been incorporated in several ballistics calculators including JBM, ColdBore, etc. Don knew that his formula would be overly...
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    Range Report Which Published Berger BCs Are From Predictions Rather than Measurements?

    Which Published Berger BCs Are From Predictions Rather than Measurements? Both Eric Stecker and Bryan Litz give the definite impression that Berger's BCs published since 2009 or so are the result of Bryan's careful and well documented BC measurement system (using an acoustic method over 600...
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    Range Report New Formula for Gyroscopic Stability of Open Tipped Match Style Rifle Bullets

    New Formula for Gyroscopic Stability of Open Tipped Match Style Rifle Bullets A paper describing our new formula for the gyroscopic stability of open tipped match bullets has just been published by Cornell University Library. Don Miller knew that the assumption of constant density used to...
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    Range Report Aerodynamic Drag and Gyroscopic Stability

    I thought the readership here might appreciate a recent article in Target Shooter Online: April 13 Issue Abstract: This paper describes the effects on aerodynamic drag of rifle bullets as the gyroscopic stability is lowered from 1.3 to 1.0. It is well known that a bullet can tumble for...
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    Range Report Do Bullets Go to Sleep?

    http://www.longrangehunting.com/articles/bullet-pitch-yaw-1.php I thought the readers here might appreciate a link to a recent article. Abstract A bullet can leave the barrel with a significant yaw angle (or tip off rate leading to pitch and yaw) and then pitch and yaw in an oscillatory...
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    Reviewers needed: BC and Gyroscopic Stability

    Reviewers needed: Aerodynamic Drag and Gyroscopic Stability Please send an email to [email protected] if you'd like to review the full paper. Abstract: This paper describes the effects on aerodynamic drag on rifle bullets as the gyroscopic stability is lowered from 1.3 to 1.0. It...
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    Reviewer needed: Powder Lot Variation Case Study

    Powder Lot Variations: A Case Study with H4831 – Hodgdon Extreme We'd need a couple of volunteers to review a five page report on a case study of lot to lot variations of H4831 in .300 Win Mag and .25-06. Please email me with your real name and organization if you'd like to review the paper...
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