ΔE 9.8, close: similar, with a visible difference side by side. Silver Grey is more muted, warmer than Terminatus Stone.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Silver Grey is more muted, warmer than Terminatus Stone.
The same difference applies the other way round: Terminatus Stone is more saturated, 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 Terminatus Stone on the colour wheel See Silver Grey on the colour wheel
All matches: Terminatus Stone equivalents · Silver Grey equivalents