stan_wa
WKR
- Joined
- Aug 6, 2020
- Location
- Washington
Something not discussed with the wind is that the magnitude of error in the wind is also super dependent on how windy it.
Also, something to consider is that for longer shots often the wind is not going to be perfectly constant through the whole flight path. With these calculations, it’s just assuming a constant wind throughout the entire flight.
It really hard to be by 8 mph in a wind call in zero wind and much more easy to be 8 mph off on a wind call in 30 mph storm winds.
I think we can settle the debate about whether the wind input should be 2SD meaning 19/20 times your wind call error is smaller than the input or if it’s 1 Sd .
I don’t have the applied ballistics pro to run the simulations. But maybe someone that does could do the following. And check my logic.
1. Pick a rifle and solution doesn’t really matter which one and run a solution with zero wind at let’s say 800
2 . then run the same solution at 8 mph wind wind input .
3. Measure roughly the width that captures 95% of the shots each the simulation.
4 . Subtract the width of step 1 from step 3. You now have a rough estimate of the effect of wind on horizontal error.
5. Divide that by 2 because the wind is plus or minus . this gives you the 2 Sd wind deflection at your in one direction
6. Calculate the wind deflection on an 8 mph shot with abs ballistic solution Be careful not to include spindrift in this.
7. Divide step 5 by 6
If this number is closer to one, then the Wes wind input is asking for a 2SD input
If this number is closer to two, then the Wes is asking for a 1 Sd wind input
My thinkings is as follows you.
If your 95% case wind deflection (results form step 5). is the same as a 8mph wind deflection (from step 6), then we know the input in the Wes is asking for a 2 SD wind input. if the the 95% case wind deflection is equal to a 16 mph wind deflection then we know the Wes is asking for a one SD input.
Also, something to consider is that for longer shots often the wind is not going to be perfectly constant through the whole flight path. With these calculations, it’s just assuming a constant wind throughout the entire flight.
It really hard to be by 8 mph in a wind call in zero wind and much more easy to be 8 mph off on a wind call in 30 mph storm winds.
I think we can settle the debate about whether the wind input should be 2SD meaning 19/20 times your wind call error is smaller than the input or if it’s 1 Sd .
I don’t have the applied ballistics pro to run the simulations. But maybe someone that does could do the following. And check my logic.
1. Pick a rifle and solution doesn’t really matter which one and run a solution with zero wind at let’s say 800
2 . then run the same solution at 8 mph wind wind input .
3. Measure roughly the width that captures 95% of the shots each the simulation.
4 . Subtract the width of step 1 from step 3. You now have a rough estimate of the effect of wind on horizontal error.
5. Divide that by 2 because the wind is plus or minus . this gives you the 2 Sd wind deflection at your in one direction
6. Calculate the wind deflection on an 8 mph shot with abs ballistic solution Be careful not to include spindrift in this.
7. Divide step 5 by 6
If this number is closer to one, then the Wes wind input is asking for a 2SD input
If this number is closer to two, then the Wes is asking for a 1 Sd wind input
My thinkings is as follows you.
If your 95% case wind deflection (results form step 5). is the same as a 8mph wind deflection (from step 6), then we know the input in the Wes is asking for a 2 SD wind input. if the the 95% case wind deflection is equal to a 16 mph wind deflection then we know the Wes is asking for a one SD input.