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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
200 yard groups . Need help
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<blockquote data-quote="westcliffe01" data-source="post: 882688" data-attributes="member: 35183"><p>Looking online: <a href="http://www.hornady.com/store/270-Win-130-gr-GMX-superformance/" target="_blank">Hornady Manufacturing Company :: Ammunition :: Rifle :: Choose by Caliber :: 270 Win :: 270 Win 130 gr GMX® Superformance®</a></p><p>Muzzle 100 200 300 400 500</p><p>3190 2976 2769 2573 2385 2202</p><p> 1.5 1.20 0.00 -5.80 -16.80 -33.90</p><p></p><p>So even the Hornady superformance load is following the laws of gravity...</p><p></p><p>Looking at your 100 yard target it looks like the zero is about an inch high. That means that the "true" zero point is out beyond 100 yards some way. The add some other unaccounted for effects like a difference in elevation between the 100 and 200 yard target, a different hold on the rifle for the 2 different ranges, moving the face forward or back relative to the scope because of the increased range, inability to see the same aiming point at the longer range ?? </p><p></p><p>There are many things that could cause this outcome, but knowing where you are truly zeroed will require a bit more consistent shooter performance first.</p><p></p><p>I agree with shooting prone for longer range if at all possible. Your upper body is unsupported on the bench and less than 1.3 of your body mass is really reacting to the recoil. Whereas prone you have all your weight behind the rifle, front and rear can be properly supported and you can take your time getting comfortable for the shot. I know our local DNR range does not allow prone shooting which is why I now have permanently set up steel targets at the farm at 160 and 320 yards.</p></blockquote><p></p>
[QUOTE="westcliffe01, post: 882688, member: 35183"] Looking online: [url=http://www.hornady.com/store/270-Win-130-gr-GMX-superformance/]Hornady Manufacturing Company :: Ammunition :: Rifle :: Choose by Caliber :: 270 Win :: 270 Win 130 gr GMX® Superformance®[/url] Muzzle 100 200 300 400 500 3190 2976 2769 2573 2385 2202 1.5 1.20 0.00 -5.80 -16.80 -33.90 So even the Hornady superformance load is following the laws of gravity... Looking at your 100 yard target it looks like the zero is about an inch high. That means that the "true" zero point is out beyond 100 yards some way. The add some other unaccounted for effects like a difference in elevation between the 100 and 200 yard target, a different hold on the rifle for the 2 different ranges, moving the face forward or back relative to the scope because of the increased range, inability to see the same aiming point at the longer range ?? There are many things that could cause this outcome, but knowing where you are truly zeroed will require a bit more consistent shooter performance first. I agree with shooting prone for longer range if at all possible. Your upper body is unsupported on the bench and less than 1.3 of your body mass is really reacting to the recoil. Whereas prone you have all your weight behind the rifle, front and rear can be properly supported and you can take your time getting comfortable for the shot. I know our local DNR range does not allow prone shooting which is why I now have permanently set up steel targets at the farm at 160 and 320 yards. [/QUOTE]
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200 yard groups . Need help
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