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Hunting
Long Range Hunting & Shooting
Altitude change on trajectory??
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<blockquote data-quote="Timber338" data-source="post: 1120312" data-attributes="member: 33822"><p>Like Feenix said, you just need to use ballistics software. For example, "Shooter" is an app you can download to your smartphone and you input all of the environmental parameters for your load... including the 5328 altitude (I prefer absolute pressure), temperature, zero distance (200 yards in your case) as well as your muzzle velocity and ballistic coefficient. All these inputs are specific to where you sighted in your rifle.</p><p></p><p>Then there is a totally different window that you enter the environmental parameters for the shot you want to take while you're hunting (temperature, humidity, altitude (or absolute pressure) and shot angle. It uses your load information from the previous window to calculate everything for you including the very small difference in 200 yard zero.</p><p></p><p>You can either use your smart phone in the field while you hunt, or just use the data at home to create a trajectory table that you'll print out and bring with you. I usually do both... the printed out trajectory table obviously estimates the altitude/pressure that you'll be shooting, and is fine out to medium range shots. For true long range shots you'll need the smart phone with you so that the environmental parameters are exact for right where you are shooting from.</p><p></p><p>If you don't have a smartphone, there are plenty of online computer based options that do the same exact thing.</p><p></p><p>Does that make sense?</p></blockquote><p></p>
[QUOTE="Timber338, post: 1120312, member: 33822"] Like Feenix said, you just need to use ballistics software. For example, "Shooter" is an app you can download to your smartphone and you input all of the environmental parameters for your load... including the 5328 altitude (I prefer absolute pressure), temperature, zero distance (200 yards in your case) as well as your muzzle velocity and ballistic coefficient. All these inputs are specific to where you sighted in your rifle. Then there is a totally different window that you enter the environmental parameters for the shot you want to take while you're hunting (temperature, humidity, altitude (or absolute pressure) and shot angle. It uses your load information from the previous window to calculate everything for you including the very small difference in 200 yard zero. You can either use your smart phone in the field while you hunt, or just use the data at home to create a trajectory table that you'll print out and bring with you. I usually do both... the printed out trajectory table obviously estimates the altitude/pressure that you'll be shooting, and is fine out to medium range shots. For true long range shots you'll need the smart phone with you so that the environmental parameters are exact for right where you are shooting from. If you don't have a smartphone, there are plenty of online computer based options that do the same exact thing. Does that make sense? [/QUOTE]
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Altitude change on trajectory??
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