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The Factors
Wind |
Gravity |
This is the first and one of the most important factors, wind. Wind can effect your projectile in many different ways, blow it to the left, to the right, up, down. Even if your projectile is 200 grains, it will still move it, even if it is a slight amount close range, at those distances, it could be a foots distance.
Air TemperatureEven just a factor like the air temperature can effect your bullet. Let's say that its a perfect 70 degrees out, the projectile is going to fly a lot better than it would at a chilly 13 degrees. This is because of the different densities of air.
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Gravity is also one of the biggest factors. one example you could use is dropping a bullet and shooting one at the exact same time, and they will hit the ground at the same time. so in other words, even if you think it will take longer to hit the ground, it will only hit the ground at a further distance.
HumidityHumidity will effect your bullet by causing it to have to push past different amounts of water particles in the air. If the humidity levels are at 23% the bullet will have some drag caused from it, although if it were around 56%, it would have quiet a bit of drag caused from it. The perfect amount of humidity for a bullet would be, you guessed it, 0%.
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The Direction You're FacingEven though you may not think it, but even if you sighted in to the West, and facing East on the shot, it could cause about 6-9 inches of difference on target.
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Spin DriftThe following video will explain the circumstances as to when you should calculate spin drift. The following link will bring you to a sight that explains how you would find spin drift better than I could. https://goneoutdoors.com/calculate-spin-drift-7660060.html
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