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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7MM Nosler ABLR
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<blockquote data-quote="Canadian Bushman" data-source="post: 941294" data-attributes="member: 41122"><p>Bullets that are launched out of a barrel off axis will do some wacky things before the immense rotational forces overcome thier crooked launch and cause their rotational axis to align with their direction of flight. </p><p></p><p>This scenario will cause a bullet to be flying much more stable at 300 yds than at 100 yds. Givin that rotational energy slows at a lesser rate than forward energy its not unusual for bullets to become more stable as they fly. Exactly like a top that was not started straight. Except the 200,000 rpms of a bullet tend to straigten it out much faster. </p><p></p><p>If the bullet is out of balance because of a physical flaw, it may have much more trouble flying straight, and the faster its spun the worse it gets.</p><p></p><p>This being said,</p><p>Long bullets are more difficult to get straight than short bullets, and the tighter twist required to spin them can exaggerate this entire process taking longer for the bullet to settle down. These scenario can lead to a gun that shoots 1" at 100yds and also at 300 yds. The bullet is not returning to its original flight plan its just simply stopped getting worse. </p><p></p><p>The best thing to do is to start the bullet into the barrel straight. This will drastically decrease the amount of time it takes for a bullet to align itself, resulting in tighter groups near and far.</p></blockquote><p></p>
[QUOTE="Canadian Bushman, post: 941294, member: 41122"] Bullets that are launched out of a barrel off axis will do some wacky things before the immense rotational forces overcome thier crooked launch and cause their rotational axis to align with their direction of flight. This scenario will cause a bullet to be flying much more stable at 300 yds than at 100 yds. Givin that rotational energy slows at a lesser rate than forward energy its not unusual for bullets to become more stable as they fly. Exactly like a top that was not started straight. Except the 200,000 rpms of a bullet tend to straigten it out much faster. If the bullet is out of balance because of a physical flaw, it may have much more trouble flying straight, and the faster its spun the worse it gets. This being said, Long bullets are more difficult to get straight than short bullets, and the tighter twist required to spin them can exaggerate this entire process taking longer for the bullet to settle down. These scenario can lead to a gun that shoots 1" at 100yds and also at 300 yds. The bullet is not returning to its original flight plan its just simply stopped getting worse. The best thing to do is to start the bullet into the barrel straight. This will drastically decrease the amount of time it takes for a bullet to align itself, resulting in tighter groups near and far. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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7MM Nosler ABLR
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