ΔE 20.7, loose: different enough that you should pick on purpose. Overlord Brass is a little lighter, more saturated, cooler than Screaming Bell.
✓ Two Thin Coats comparison chart lists these two as equivalents.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Overlord Brass is a little lighter, more saturated, cooler than Screaming Bell.
The same difference applies the other way round: Screaming Bell 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 Screaming Bell on the colour wheel See Overlord Brass on the colour wheel
All matches: Screaming Bell equivalents · Overlord Brass equivalents