ΔE 8.5, close: similar, with a visible difference side by side. Nocturnal Red is a little darker, warmer than Russet.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Nocturnal Red is a little darker, warmer than Russet.
The same difference applies the other way round: Russet is a little lighter, cooler.
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 Russet on the colour wheel See Nocturnal Red on the colour wheel
All matches: Russet equivalents · Nocturnal Red equivalents