ΔE 13.1, fair: the same colour family, but not a straight swap. Bullion is noticeably lighter, more muted than Weapon Bronze.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Bullion is noticeably lighter, more muted than Weapon Bronze.
The same difference applies the other way round: Weapon Bronze is noticeably darker, more saturated.
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 Weapon Bronze on the colour wheel See Bullion on the colour wheel
All matches: Weapon Bronze equivalents · Bullion equivalents