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Reading The Wind
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<blockquote data-quote="Shawn Carlock" data-source="post: 171061" data-attributes="member: 4"><p>There is a named effect for this action but the name escapes me right now. By belief is this, when a bullet is engraved by the rifle barrel it makes places for the air to grab the bullet and effect it. With this in mind spinning into a wind causes it to strike slightly low and spinning with it makes it strike slightly high. This effect is very small but does exist. I have noticed that poly rifling and 5r rifling engrave the bullet less and tend to not have an abrupt edge in the engraving. Bullets fired through these barrels show less of this effect in the same conditions. Reguardless of why, it does occur. it is very noticable with more accurate smaller caliber rifles like a 6mm BR benchrest rifle that shoots "in the 1's" it is very noticable. The accuracy of this rifle and size of its bullets make the .100-.150" elevation change of this effect very noticable. If you are shooting a 1/2" .338 cal rifle it is tougher to see, but does exist. Hope this helps.</p></blockquote><p></p>
[QUOTE="Shawn Carlock, post: 171061, member: 4"] There is a named effect for this action but the name escapes me right now. By belief is this, when a bullet is engraved by the rifle barrel it makes places for the air to grab the bullet and effect it. With this in mind spinning into a wind causes it to strike slightly low and spinning with it makes it strike slightly high. This effect is very small but does exist. I have noticed that poly rifling and 5r rifling engrave the bullet less and tend to not have an abrupt edge in the engraving. Bullets fired through these barrels show less of this effect in the same conditions. Reguardless of why, it does occur. it is very noticable with more accurate smaller caliber rifles like a 6mm BR benchrest rifle that shoots "in the 1's" it is very noticable. The accuracy of this rifle and size of its bullets make the .100-.150" elevation change of this effect very noticable. If you are shooting a 1/2" .338 cal rifle it is tougher to see, but does exist. Hope this helps. [/QUOTE]
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