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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Tuning for long range
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<blockquote data-quote="Alex Wheeler" data-source="post: 1351890" data-attributes="member: 101859"><p>If you have to shoot at 100 you are stuck shooting groups. Draw a horizontal line and put your aim points on that line. While shooting 3 shot groups you will see the poi shift up and down in a wave. That tells you where the barrel is pointing when the bullets are exiting. Look for a good load just before the highest point on that wave. You will have to test it for ES. You will have to shoot more at 100 and it may not pan out at long range, but if you find a good load just before the high point in the sine wave you should be close. Do not be afraid to tweak powder charges at distance if you see too much vertical. Under 20 on the ES is acceptable. 15-20 is a realistic goal.</p></blockquote><p></p>
[QUOTE="Alex Wheeler, post: 1351890, member: 101859"] If you have to shoot at 100 you are stuck shooting groups. Draw a horizontal line and put your aim points on that line. While shooting 3 shot groups you will see the poi shift up and down in a wave. That tells you where the barrel is pointing when the bullets are exiting. Look for a good load just before the highest point on that wave. You will have to test it for ES. You will have to shoot more at 100 and it may not pan out at long range, but if you find a good load just before the high point in the sine wave you should be close. Do not be afraid to tweak powder charges at distance if you see too much vertical. Under 20 on the ES is acceptable. 15-20 is a realistic goal. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Tuning for long range
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