Need help finding the G1, G2, etc... drag coefficient functions

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    Bullet Drag Flight
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SUMMARY

The discussion focuses on the challenge of finding accurate drag coefficient functions (G1, G2, etc.) for simulating a bullet's flight and calculating air resistance. Users are seeking reliable lookup tables and calculators that provide drag coefficients at various Mach speeds. Key resources shared include links to Applied Ballistics, Wikipedia articles on external ballistics, and Hornady's ballistic calculators. The conversation emphasizes the need for precise data to enhance the accuracy of ballistic simulations.

PREREQUISITES
  • Understanding of external ballistics and drag coefficients
  • Familiarity with Mach number and its significance in aerodynamics
  • Knowledge of ballistic coefficient concepts and their applications
  • Experience with online resources for ballistic calculations
NEXT STEPS
  • Research "G1 and G7 ballistic coefficients" for detailed comparisons
  • Explore "drag coefficient calculators" for practical applications
  • Study "external ballistics modeling" for advanced simulation techniques
  • Investigate "bullet shape effects on drag" for enhanced accuracy in simulations
USEFUL FOR

This discussion is beneficial for ballistic engineers, firearms enthusiasts, and anyone involved in precision shooting or ballistic simulation who seeks to improve their understanding of drag coefficients and their impact on bullet performance.

iMakeMehThings
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I cannot seem to find them, and I am confused as to what they are. I am trying to simulate a bullet in flight and need to calculate air resistance. I'd like to be accurate to real life and use a lookup table but I can't seem to find a graph of the drag coefficients that has an accompanying calculator to calculate the exact numbers at each Mach speed.
 
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Welcome to PF.

What Google search terms have you been using? Can you post some links to pages that you have found that are at least close to what you are looking for?
 
berkeman said:
Welcome to PF.

What Google search terms have you been using? Can you post some links to pages that you have found that are at least close to what you are looking for?
Sure, here are things I've found:
https://appliedballisticsllc.com/wp.../Aerodynamic-Drag-Modeling-for-Ballistics.pdf
https://en.wikipedia.org/wiki/External_ballistics
http://dave2.freeshell.org/ammo/coeff8/coeff8.htm
https://kestrelmeters.com/pages/g1-g7-ballistic-coefficients-what-s-the-difference
https://en.wikipedia.org/wiki/Ballistic_coefficient

Most have information or a graph but not a calculator or table.
I've also been using search terms like:
- g1
- g7
- bullet shapes
- drag coefficient
- drag curve
- table
- calculator
 
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I did a Google search on hornady bullet air resistance and this was the first hit. Does it help?

https://www.hornady.com/team-hornady/ballistic-calculators/ballistic-resources/external-ballistics

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