WEZ hit rates.

[Jordan Smith]

Just pushing buttons in my Geoballistics app with this: But 2/3 of it comes on and off when I toggle "spin drift" and 1/3 of with "coriolis effect" (shooting due north). "Crosswind jump," which I presume is their word for aerodynamic jump, is all in the vertical. Running the same 550 yard scenario as earlier.

Yes, exactly.

 

[wind gypsy]

What makes you think that there’s a horizontal component to the displacement caused by AJ in a L/R wind?

Was pretty positive I recalled reading that a while back. Quick google of it makes my head hurt, open to being wrong.

Assume if there was a vertical component in the wind it would certainly have a windage offset but that's not how the ballistic calcs are typically set up to work.

 

[willfrye027]

Man I had to skip past a lot of the spin drift/updraft/downdraft/breakdance wind math you guys are talking about.

What’s working for me is knowing my gun mph, not shooting if my wind call is too questionable, and most importantly…

Spotting impacts and working the bolt quickly

 

[willfrye027]

About an week ago I decided to shoot a rock at 850 yards midday on a hunt in Idaho. Took my sweet ass time, great rest, felt like I hand a handle on the wind (7-10 mph 90 degrees…my gun is a 7mph gun) so I held about .8 mils off the 5” rock. Bam!! Miss exactly .8 mils left. WTF? Reload quick, smash rock twice with zero wind hold. There was an opposite wind somewhere in there that canceled it out and I did not detect is.

I’m nowhere near “art” wind call but I have zero qualms about a second round hit assuming it’s not a do or die scenario where the animal can easily get away wounded. In that case I stalk closer.

 

[RWT]

About an week ago I decided to shoot a rock at 850 yards midday on a hunt in Idaho. Took my sweet ass time, great rest, felt like I hand a handle on the wind (7-10 mph 90 degrees…my gun is a 7mph gun) so I held about .8 mils off the 5” rock. Bam!! Miss exactly .8 mils left. WTF? Reload quick, smash rock twice with zero wind hold. There was an opposite wind somewhere in there that canceled it out and I did not detect is.

I’m nowhere near “art” wind call but I have zero qualms about a second round hit assuming it’s not a do or die scenario where the animal can easily get away wounded. In that case I stalk closer.

But would the hit have resulted in a dead elk/deer/200lb critter. I assume it would.

 

[Jordan Smith]

Was pretty positive I recalled reading that a while back. Quick google of it makes my head hurt, open to being wrong.

Assume if there was a vertical component in the wind it would certainly have a windage offset but that's not how the ballistic calcs are typically set up to work.

Yes, exactly. Aerodynamic jump is an effect that acts perpendicular to the direction of the wind, so if there is a vertical wind, then you'll see a horizontal displacement, and vice versa.

In this case, we're comparing purely horizontal wind from the left and right, so the AJ effect will manifest as slightly more or less drop at distance, but no effect on windage.

The primary effects, outside of typical wind drift, that impact windage are spin (gyroscopic) drift and Coriolis.

 

[willfrye027]

But would the hit have resulted in a dead elk/deer/200lb critter. I assume it would.

Would have been an ass shot on a deer. It’s not a shot I would have taken in that wind at that distance. I would have still killed it with a follow up or tracking it down..my animal loss rate is 1.4% currently so odds are it would have died…then again it’s not a shot I’d take on an animal.

.8 mils about 2 feet at 800 yards if my math is right so either ass/far guts or miss in front of the animal depending on where it was facing.