Function calculate_advanced_stability 

pub fn calculate_advanced_stability(
    mass_grains: f64,
    velocity_fps: f64,
    twist_rate_inches: f64,
    caliber_inches: f64,
    length_inches: f64,
    air_density_kg_m3: f64,
    temperature_k: f64,
    bullet_type: &str,
    has_boat_tail: bool,
    has_plastic_tip: bool,
) -> f64

Calculate advanced Miller stability with modern corrections