Enum GasVelocityModel 

pub enum GasVelocityModel {
    Saami(FirearmType),
    Factor(f64),
    Fixed(f64),
}

How the propellant gas velocity (SAAMI’s V_PG) is resolved from the muzzle velocity. See the module docs for why the SAAMI type-keyed factor is the default.

Variants

Saami(FirearmType)

V_gas = firearm_type.saami_gas_factor() * V_muzzle – the default/recommended path.

Factor(f64)

V_gas = factor * V_muzzle: an explicit override of the SAAMI per-type factor.

Fixed(f64)

V_gas is an absolute constant (m/s), independent of muzzle velocity – e.g. the popular non-SAAMI rule of thumb of roughly 4700 fps (~1433 m/s) for smokeless powder, or a chronographed/measured gas velocity.

Implementations

impl GasVelocityModel

pub fn resolve_mps(self, muzzle_velocity_mps: f64) -> f64

Resolve the propellant gas velocity (m/s) for a given muzzle velocity (m/s).

Trait Implementations

impl Clone for GasVelocityModel

fn clone(&self) -> GasVelocityModel

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for GasVelocityModel

impl Debug for GasVelocityModel

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for GasVelocityModel

fn eq(&self, other: &GasVelocityModel) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for GasVelocityModel