Isnt SD-10'S RANGE 100 km ? Anyways having an edge over R-77 by 20 km is not not going to give much of an advantage,
R-27P (AA-10C) semi-active radar guided, long range AAM 130 km
R-27P (AA-10D) Infrared homing extended range version, long range AAM 120 km
P.S not turning into a VS thread...