ΔE 9.3, close: similar, with a visible difference side by side. Russet Brown is more saturated, warmer than Traitor Red.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Russet Brown is more saturated, warmer than Traitor Red.
The same difference applies the other way round: Traitor Red is more muted, 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 Traitor Red on the colour wheel See Russet Brown on the colour wheel
All matches: Traitor Red equivalents · Russet Brown equivalents