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Post by Deleted on Oct 23, 2020 18:45:56 GMT -5
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Post by uncleharley on Oct 24, 2020 13:42:23 GMT -5
Just basic trigonometry.
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Post by Deleted on Oct 24, 2020 14:25:21 GMT -5
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Post by freedomhunter on Oct 24, 2020 16:35:16 GMT -5
Probably thinking of curvature of the earth. Usually comes into play around a mile.
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Post by esshup on Oct 24, 2020 18:39:07 GMT -5
Probably thinking of curvature of the earth. Usually comes into play around a mile. Nope, what he's referring to is the coriolis effect. Basically if you are not shooting due East or due West, once the bullet leaves the rifle barrel the earth is turning under the bullet, so you have to take into account how far the object will have moved while the bullet is in flight. It's more pronounced if you sight in the rifle shooting North or South, and then shoot the opposite direction at a target.
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Post by esshup on Oct 24, 2020 18:42:57 GMT -5
Wind is a HUGE factor in long distance shooting. Even a head or tail wind will affect the bullet, and for a number of reasons. 1) you have spin drift, which means that a bullet fired from a right hand twist barrel will move differently than a bullet fired from a left hand twist barrel. 2) If you are shooting into a head wind, and there is a hill between you and your target, the wind coming up and over the hill will reduce the bullet drop.
Temp, elevation, Relative Humidity and barometric pressure also plays a part, but there are charts for those.
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Post by Deleted on Oct 24, 2020 18:45:16 GMT -5
Wind is a HUGE factor in long distance shooting. Even a head or tail wind will affect the bullet, and for a number of reasons. 1) you have spin drift, which means that a bullet fired from a right hand twist barrel will move differently than a bullet fired from a left hand twist barrel. 2) If you are shooting into a head wind, and there is a hill between you and your target, the wind coming up and over the hill will reduce the bullet drop. Temp, elevation, Relative Humidity and barometric pressure also plays a part, but there are charts for those. There's a lot more to long range shooting than I think I could ever wrap my head around. Carlos Hathcock was a bad man.
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Post by freedomhunter on Oct 24, 2020 20:03:15 GMT -5
👍 my experience is with lasers. Good to know, I had never heard of that.
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Post by genesis273 on Oct 24, 2020 20:55:27 GMT -5
Sniper school was one of my favorite classes. Tons of information that most people don't even consider
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