ΔE 25.6, loose: different enough that you should pick on purpose. Targor Rageshade is much more muted, cooler than Rust Tone.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 26). Targor Rageshade is much more muted, cooler than Rust Tone.
The same difference applies the other way round: Rust Tone is much 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 Rust Tone on the colour wheel See Targor Rageshade on the colour wheel
All matches: Rust Tone equivalents · Targor Rageshade equivalents