Iowa improved to 6-1 with its 81-65 win over Georgia Tech in the Big Ten/ACC Challenge. Like he’s done so often already this season, Hawkeyes forward Kris Murray went off. This version of going off was more like nuclear going off, though. Murray registered a monster 30-20 game, dropping a career-high 31 points to go along with his 20 rebounds. He also added four assists and a pair of blocks. Three other Hawkeyes recorded double-figure scoring, including senior guard Connor McCaffery who finished with his first career double-double. Connor McCaffery had 10 points and 10 rebounds. Filip Rebraca added 13…