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Long Range Hunting & Shooting
Transonic phase?
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<blockquote data-quote="Adikted" data-source="post: 1374730" data-attributes="member: 91925"><p>So I put some bad info in the post above for that I apologize, speed of sound in dry air at 86° is 1120 fps at 32° its 1087 so 54° of temperature change yields a speed change of 33 fps. Transonic destabilization is different from bullet to bullet with the base of the bullet being the largest contributer. The squarer the base the more stable the projectile is through the transonic range, also a bullet spun at a higher rate is more resistant to destabilization.</p><p></p><p>Since you're likely to be shooting the heaviest and most aerodynamic projectile you can stabilize to maximize trajectory you're probably going to find that you have transonic issues at the higher end 1250- 1350 however the only way to be sure is to punch paper at the ranges you intend to hunt. Transonic destabilization causes bullet yaw so it is evident via elongated holes</p></blockquote><p></p>
[QUOTE="Adikted, post: 1374730, member: 91925"] So I put some bad info in the post above for that I apologize, speed of sound in dry air at 86° is 1120 fps at 32° its 1087 so 54° of temperature change yields a speed change of 33 fps. Transonic destabilization is different from bullet to bullet with the base of the bullet being the largest contributer. The squarer the base the more stable the projectile is through the transonic range, also a bullet spun at a higher rate is more resistant to destabilization. Since you're likely to be shooting the heaviest and most aerodynamic projectile you can stabilize to maximize trajectory you're probably going to find that you have transonic issues at the higher end 1250- 1350 however the only way to be sure is to punch paper at the ranges you intend to hunt. Transonic destabilization causes bullet yaw so it is evident via elongated holes [/QUOTE]
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