predict_stability_at_distance

ballistics_engine::stability_advanced

Function predict_stability_at_distance 

Source 
pub fn predict_stability_at_distance(
    initial_stability: f64,
    initial_velocity_fps: f64,
    current_velocity_fps: f64,
    spin_decay_factor: f64,
) -> f64
Expand description

Predict stability over trajectory with velocity and spin decay.

spin_decay_factor is the current spin rate divided by muzzle spin rate, typically 0.95-0.98 because axial spin decays much more slowly than forward velocity.