How would you explain how nobody ever takes an azimuth to a target
Well I personally do, it is one of the first things I do when I arrive to a new range. There is an amazing compass app for the iphone that works great and before that I had an old lensatic that I used. I use the app with Shooter and have found the results to be pretty decent, not perfect but a lot closer than using calculations where it is not considered in the calculations. I also think a lot of shooters who don't would take a few shots and make any adjustments to correct. I never hit the same zero one range to the next let alone one day to the next. It usually takes a click here and there to get me back to zero.
I am not shooting a .338, my velocities are fast approaching 1000 FPS at 1000 so the flight time is longer than shooting a faster bullet. One and a half seconds = about 750 yards of earths rotation, if you are shooting a target that is rising due to the curve of the earth, you are going to hit low. I believe that 1/2 SD you mention is a 10 inch difference east to west because you need to calculate the difference between 2000 yards, you are stating it is 5" at 1000. If I dope for 1000 shooting east, and do what that fella did in the video and turn 180 degrees and don't change the dope I will have a 5 inch difference in the opposite direction. There is the 10 inches.
What I am having a hard time with is understanding your point about space and the barrier layer and how that is relevant. That barrier layer is not stone and it does not hold the bullet in the same plane relative to the surface minus the effect of gravity when the bullet is in flight. Minus gravity it would travel in a straight line. but the surface of the earth is not flat.
How does left spin drift negate a vertical drop? It would negate a left Coriolis drift but not a right one. Maybe the problem is I ordered the wrong Bartlien barrels, they all have a right twist. My Omen has a right twist, and so do all my other guns. Are you implying you are shooting left twist barrels?
This discussion reminds me of how bombers aimed their drops to hit the targets, from the time the bombs left the plane till they would impact, the rotation of the earth, altitude, and flight heading had to be considered in the solution to hit the target. From what I gather with your point about the barrier layer, if I dropped anything from a plane it should indeed hit the point it was directly over when I released it and that is not the case. Can you explain that a little better to help me understand it?
I find miles and miles of information on Coriolis effect online and in old training manuals, and I know it is a big factor in artillery firing solutions. You really see it when you are lobbing a shell 8 miles.... So how Pesja has a different theory and writes a book on it for shooters and that book suddenly changes an effect that has been observed for a long time is a bit confusing to me. Physics are physics. Have a look at some of the engineer reviews of Pesja's book, they don't bestow a lot of confidence in his calculations.
the dumbest thing I read in a while.
