pub const POUNDS_TO_KG: f64 = 0.45359237;Expand description
Avoirdupois pound in kilograms, exact by definition (1 lb = 0.45359237 kg). Used to
convert firearm weight (pounds, imperial units) to the SI mass free_recoil needs –
the only pound-denominated input in this crate (bullet/charge weight use grains, via
constants::GRAINS_TO_KG).