ΔE 8.3, close: similar, with a visible difference side by side. US Field Drab is a little lighter, more saturated, cooler than Ammo Pouch Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). US Field Drab is a little lighter, more saturated, cooler than Ammo Pouch Brown.
The same difference applies the other way round: Ammo Pouch Brown is a little darker, 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 Ammo Pouch Brown on the colour wheel See US Field Drab on the colour wheel
All matches: Ammo Pouch Brown equivalents · US Field Drab equivalents