The magnetic behaviour of HDDR powders prepared from a Pr 1 3 . 7 Fe 6 3 . 5 Co 1 6 . 7 B 6 Zr 0 . 1 alloy has been investigated. It has been shown that it is possible to produce highly anisotropic HDDR material from this alloy in the homogenised state (1373 K for 20 h). Remanent magnetisation in the easy direction of the aligned powder was 126+/-2 J/Tkg whereas, in the hard direction, it was 30+/-0.6 J/Tkg. HDDR powder based on the corresponding Nd-based alloy (subjected to the same heat treatments) and commercially available, HDDR powder, have both been used as a comparison. The degree of alignment for the HDDR powder based on the Pr alloy was higher (76%) than that of the commercial HDDR powder (69%).