measuring atmospheric displacement/shimmer

[johnfkingmatrix]

Read everything i could on atmospheric mirage/shimmer and how it distorts target location.. is there a "cheat sheet" on how to account for this? most of what im finding just makes it sound like your FK`d ??
One article i read

i had bot ai parse articles and come up with this but not sure if correct lol

Displacement Scenarios:​

• Boiling Mirage:
  • Wind Speed: 0-1 mph (6-12 o’clock wind).
  • Target Displacement: Vertical only.
  • Correction: Slight lowering of the rear sight; negligible horizontal correction.
  • Critical Detail: Can indicate a 6-12 o’clock wind or very slight fishtailing.
• Slow Mirage:
  • Wind Speed: 1-3 mph.
  • Target Displacement: ~1.5 MOA.
  • Corrections:
    • Vertical: Lower rear sight by 1.31 MOA (~1.25 MOA).
    • Horizontal: 0.75 MOA (~3/4 MOA) windage correction.
  • Critical Detail: Heat waves are slightly inclined (7-1 or 5-11 o’clock), requiring both elevation and windage adjustments.
• Medium Mirage:
  • Wind Speed: 4-7 mph.
  • Target Displacement: ~1.5 MOA.
  • Corrections:
    • Vertical: Lower rear sight by 0.75 MOA (~3/4 MOA).
    • Horizontal: 1.31 MOA (~1.25 MOA) windage correction.
  • Critical Detail: Heat waves cross the target at a 60° angle (8-2 or 4-10 o’clock), requiring greater horizontal correction.
• Fast Mirage:
  • Wind Speed: 8-12 mph.
  • Target Displacement: Horizontal only.
  • Correction: Adjust windage based on wind speed; no elevation change required.
  • Critical Detail: Heat waves move horizontally, indicating strong wind influence.
• Boiling with Lateral Movement:
  • Wind Speed: Varies, indicating complex wind directions.
  • Target Displacement: Both vertical and horizontal.
  • Correction: Varies; requires simultaneous vertical and horizontal adjustments.
  • Critical Detail: Secondary heat waves indicate wind from intermediate directions (e.g., 9-12, 3-6 o’clock).

​

 

[johnfkingmatrix]

https://www.nzhuntingandshooting.co.nz/attachments/f32/1408d1335397324-wind-mirage-last-frontier-south-texas-marksmanship-training-center-reading-mirage.pdf&ved=2ahUKEwi94rLFr-KBAxVal2oFHc4DDkAQFnoECAwQAQ&usg=AOvVaw1JhoCWDhB-Kphk8crJCXLy

here was source article

 

[Will Henry]

In general, I have always felt that a running mirage was good for about 1/2 moa of displacement, with bullet deflection being due to the indicated wind effects. In a situation where you are looking through layers of air of different temperature or density, the displacement of the target image can be greater. What is worse, because there is no boil, or run, it is difficult to see or read. This shows up on days which are dead calm, especially on a protected range. WH