For PCP air gunners, a more suitable approach might involve using the
GA model or even custom drag models tailored to the specific shapes of air gun projectiles. Here are a few steps to consider:
- GA Model: The GA model is designed for projectiles with shapes more similar to air gun slugs. It can provide more accurate BC values for these types of projectiles.
- Custom Drag Models: Some advanced ballistic calculators allow you to input custom drag models. These models can be created based on empirical data from shooting tests, providing a more accurate representation of how your specific slug behaves in flight.
- Empirical Testing: Conducting your own testing with a chronograph and target at various distances can help you determine the actual performance of your slugs. By measuring the velocity drop over distance, you can calculate a more accurate BC for your specific setup.
- Software Tools: Use ballistic software that supports custom drag models and allows you to input your own data. Tools like ChairGun or Strelok Pro can be very helpful for this purpose.
By using these methods, you can achieve a more accurate understanding of your PCP air gun’s performance and optimize your shooting experience.