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Hunting
Long Range Hunting & Shooting
Necessary precision to kill something
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<blockquote data-quote="Joe-boy" data-source="post: 3064138" data-attributes="member: 113266"><p>This is an entertaining thread.</p><p></p><p>In my point of view the main thing many of us have challenges in understanding is that at longer ranges the error caused by windage by far exceeds the inherent dispersion of the gun and the shooter. Even if you were a 0.0 MOA shooter and had a 0.0 MOA gun we'd be missing the target because estimating wind drift at extended ranges is super challenging and the wind speed and direction may be changing all the time. The same applies to some extent to other causes of dispersion, but the windage is by far the most important on extended ranges.</p><p></p><p>Very, very rare, if any, can really read the wind reliably and repeatedly to 1 mph or less. And 1 mph estimation error is enough to throw even a high BC bullet off the kill zone of most animals at 1000 yards. The error caused by slightly incorrect wind estimation even when using a high BC bullet is roughly 1 MOA at that range. Which equals to about 2 MOA gun which sounds terrible.</p><p></p><p>A good shooter with a good rifle and good wind call capabilities may have a relatively high hit probability even at distances above 1000 yards, but I'd say many of us make a big mistake by extrapolating the group size from 100 or 200 yards. The group size is one thing, but the location of the group is another thing. This can be also seen on shorter ranges; making e.g. five shots on three different days, starting from a cold, clean bore, and hitting a one inch dot on each shot is a lot less straight forward than one may think. Shooting a nice group is one thing, but centering the group repeatedly even at 100 yards seems to be surprisingly challenging to many.</p></blockquote><p></p>
[QUOTE="Joe-boy, post: 3064138, member: 113266"] This is an entertaining thread. In my point of view the main thing many of us have challenges in understanding is that at longer ranges the error caused by windage by far exceeds the inherent dispersion of the gun and the shooter. Even if you were a 0.0 MOA shooter and had a 0.0 MOA gun we'd be missing the target because estimating wind drift at extended ranges is super challenging and the wind speed and direction may be changing all the time. The same applies to some extent to other causes of dispersion, but the windage is by far the most important on extended ranges. Very, very rare, if any, can really read the wind reliably and repeatedly to 1 mph or less. And 1 mph estimation error is enough to throw even a high BC bullet off the kill zone of most animals at 1000 yards. The error caused by slightly incorrect wind estimation even when using a high BC bullet is roughly 1 MOA at that range. Which equals to about 2 MOA gun which sounds terrible. A good shooter with a good rifle and good wind call capabilities may have a relatively high hit probability even at distances above 1000 yards, but I'd say many of us make a big mistake by extrapolating the group size from 100 or 200 yards. The group size is one thing, but the location of the group is another thing. This can be also seen on shorter ranges; making e.g. five shots on three different days, starting from a cold, clean bore, and hitting a one inch dot on each shot is a lot less straight forward than one may think. Shooting a nice group is one thing, but centering the group repeatedly even at 100 yards seems to be surprisingly challenging to many. [/QUOTE]
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Necessary precision to kill something
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