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Hunting
Long Range Hunting & Shooting
7mm Rem mag 168gr or even 180Gr tumble and inaccuracy with 8 twist barrel?
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<blockquote data-quote="preventec47" data-source="post: 1624937" data-attributes="member: 22159"><p>I am surprised at how WRONG the supposed "experts" are here with their "nonsense".</p><p>Yes indeed there are consequences of over spinning a bullet other than</p><p>spinning the jacket off. The decrease in accuracy significance increases with distance.</p><p>For illustration, lets assume an extreme situation. Long shot at 2500</p><p>yards. Lets assume for simplicity you aim fifteen degrees above target. </p><p>IF your bullet is over spun, when the bullet arrived and hits the target</p><p>the bullet will be aiming or pointed 15 degrees off of the direction of</p><p>travel. ie flying sideways a bit compared to the light path and still </p><p>pointing in the original direction of aim instead of following the path of flight. </p><p>THIS IS OVER-STABILIZATION.</p><p>When the bullet flies sideways like this accuracy goes all to heck</p><p>as you would imagine... especially as the bullet is spinning rapidly</p><p>and an effect much like a curve baseball occurs causing a veer sideways</p><p>as if there was a slight wind.</p><p>This is the reason every barrel does not come from the factory with</p><p>crazy fast twist. You cannot get good accuracy with a light short bullet</p><p>in a fast twist barrel nor vice versa.</p><p>You know where I learned all this ? I was a punter in football.</p><p>Too much spin and the spiraling ball will not "turn over" as it comes</p><p>down at the other end.</p></blockquote><p></p>
[QUOTE="preventec47, post: 1624937, member: 22159"] I am surprised at how WRONG the supposed "experts" are here with their "nonsense". Yes indeed there are consequences of over spinning a bullet other than spinning the jacket off. The decrease in accuracy significance increases with distance. For illustration, lets assume an extreme situation. Long shot at 2500 yards. Lets assume for simplicity you aim fifteen degrees above target. IF your bullet is over spun, when the bullet arrived and hits the target the bullet will be aiming or pointed 15 degrees off of the direction of travel. ie flying sideways a bit compared to the light path and still pointing in the original direction of aim instead of following the path of flight. THIS IS OVER-STABILIZATION. When the bullet flies sideways like this accuracy goes all to heck as you would imagine... especially as the bullet is spinning rapidly and an effect much like a curve baseball occurs causing a veer sideways as if there was a slight wind. This is the reason every barrel does not come from the factory with crazy fast twist. You cannot get good accuracy with a light short bullet in a fast twist barrel nor vice versa. You know where I learned all this ? I was a punter in football. Too much spin and the spiraling ball will not "turn over" as it comes down at the other end. [/QUOTE]
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7mm Rem mag 168gr or even 180Gr tumble and inaccuracy with 8 twist barrel?
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