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Hunting
Long Range Hunting & Shooting
7mm rem. mag. 175 gr. PSP
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<blockquote data-quote="liltank" data-source="post: 345317" data-attributes="member: 13275"><p>So this humidity thing was bugging me. I decided to run the numbers through JBM to see if my theory held weight and whether or not that I have in fact read an article discussing this very issue. So all things being equal; Baro, temp, altitude, I just changed the humidity to see what effect it changed on velocity and flight. Here is what I came up with:</p><p></p><p></p><p>Rifle is an assumed load because I was crunching numbers for another thread:</p><p>338 Norma 2750fps 300grnSMK</p><p></p><p>First the numbers</p><p>75 degrees temp, 100%Humidity, 1000' elevation, Baro 28.82 (close enough) </p><p>39.55 MOA 1506fps 1510 ft. lbs 1340yrds</p><p></p><p>Same as above except the Humidity is changed to 30%</p><p>39.04MOA 1505fps 1508 ft. lbs. 1330yrds.</p><p></p><p>So as you can see, all things being equal which can happen in PA except the humidity, a more humid environment allows for better ballistics. Can somebody explain this?</p><p></p><p>Tank</p></blockquote><p></p>
[QUOTE="liltank, post: 345317, member: 13275"] So this humidity thing was bugging me. I decided to run the numbers through JBM to see if my theory held weight and whether or not that I have in fact read an article discussing this very issue. So all things being equal; Baro, temp, altitude, I just changed the humidity to see what effect it changed on velocity and flight. Here is what I came up with: Rifle is an assumed load because I was crunching numbers for another thread: 338 Norma 2750fps 300grnSMK First the numbers 75 degrees temp, 100%Humidity, 1000' elevation, Baro 28.82 (close enough) 39.55 MOA 1506fps 1510 ft. lbs 1340yrds Same as above except the Humidity is changed to 30% 39.04MOA 1505fps 1508 ft. lbs. 1330yrds. So as you can see, all things being equal which can happen in PA except the humidity, a more humid environment allows for better ballistics. Can somebody explain this? Tank [/QUOTE]
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Long Range Hunting & Shooting
7mm rem. mag. 175 gr. PSP
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