ΔE 10.3, fair: the same colour family, but not a straight swap. Anthrax Metal is a little lighter than Leadbelcher.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Anthrax Metal is a little lighter than Leadbelcher.
The same difference applies the other way round: Leadbelcher is a little darker.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Leadbelcher on the colour wheel See Anthrax Metal on the colour wheel
All matches: Leadbelcher equivalents · Anthrax Metal equivalents