ΔE 7.8, close: similar, with a visible difference side by side. Schilf Green is more saturated, cooler than NATO Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Schilf Green is more saturated, cooler than NATO Green.
The same difference applies the other way round: NATO Green is more muted, warmer.
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 NATO Green on the colour wheel See Schilf Green on the colour wheel
All matches: NATO Green equivalents · Schilf Green equivalents