ΔE 8.0, close: similar, with a visible difference side by side. Bestial Green is a little lighter, more muted, cooler than Medium Drab.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Bestial Green is a little lighter, more muted, cooler than Medium Drab.
The same difference applies the other way round: Medium Drab is a little darker, more saturated, 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 Medium Drab on the colour wheel See Bestial Green on the colour wheel
All matches: Medium Drab equivalents · Bestial Green equivalents