LINCOLN, Neb. (AP) — Ray Gallegos couldn't seem to get comfortable offensively the first 15 minutes of Nebraska's game against Southern California Monday night.

He made up for lost time.

Gallegos scored 11 straight points to end the first half and break open a close game, and he finished with a career high-tying 20 in the Cornhuskers' 63-51 victory.

Gallegos, who also had 20 in last Tuesday's road win over Wake Forest, missed the only two shots he took before getting hot the last five minutes of the half.

"I started off slow, but just like last game, my teammates told me to keep being aggressive and it'll come," he said.

Gallegos, who made 4 of 8 3-pointers against Wake Forest, hit a career-high 6 of 10 against the Trojans. His 55.6-percent shooting from long range in the two games is a far cry from his 35.1-percent accuracy the first five.

Would he hesitate to shoot a 3 from any spot, any time?

"As far as right now, no," he said.

The Huskers (6-1), off to their best start since 2008-09, led by as many as 20 points in the most lopsided game in the recent four-game series with the Trojans.

Gallegos wasn't the only man with a hot hand for Nebraska. Dylan Talley made three 3s while scoring 14 points. The Huskers, who came into the game shooting just 29.8 percent on 3s, connected on a season-high 11 of 17.

J.T. Terrell scored 14 points, Byron Wesley had 12 and Jio Fontan scored 11 for the Trojans (3-4).

Nebraska had beaten USC each of the past three years by a total of eight points, and it looked like it would be another close game early. Then Gallegos went on a tear, scoring all 11 of his first-half points in a row to give the Huskers a 33-25 lead.

He hit a 3-pointer to break a 22-all tie, put Nebraska ahead with a jumper inside the arc for a 27-25 lead and then hit two more 3s to make it an eight-point game.

"What Gallegos did at the end of the first half was probably the difference in the game," USC coach Kevin O'Neill said. "It stretched it out. We were up. Then he went on that little tirade of shots that really gave them a lift and a boost."

The Huskers were just getting started.

Andre Almeida's bank-in, tip-in, inside bucket and Talley's 3-pointer helped extend the run to 19-3 early in the second half.

USC had a 10½-minute field-goal drought end when Fontan swiped the ball from Gallegos and drove the length of the floor for a layup, ending a stretch in which the Trojans missed nine shots and committed five turnovers.

"We haven't been making (shots) all year," O'Neill said. "We have less turnovers than our opponents, more rebounds overall, the whole thing. We're having real trouble manufacturing points in the post. When you get that, they just start moving up on your guys on the outside."

USC's three 7-footers — Dewayne Dedmon, James Blasczyk and Omar Oraby — combined for just seven points and seven rebounds in a combined 39 minutes. The Trojans shot 38.3 percent.

Gallegos' fourth and fifth 3-pointers, along with Shavon Shields' short jumper, stretched Nebraska's lead to 52-32 with 10 minutes to play.

A junior, Gallegos sat out as a redshirt last season. First-year Nebraska coach Tim Miles said former coach Doc Sadler had told him that Gallegos could be an offensive weapon.

"His shooting is as good as I've seen," Miles said. "(Doc said) Ray can get it cooking in that southern charm way Doc would tell you. I texted him after Wake and said, 'You were right.' He was the same way tonight. Ray has that element about him. Nobody has more lift on a jump shot than Ray Gallegos. If you get him a half-step advantage, get him in rhythm a little bit, he can do some great things."

The Huskers committed 15 turnovers but were still more than good enough against a USC team that has been woeful on the road. The Trojans, who were playing their first true road game of the season, have lost 11 straight on the road and 29 of 37.

Nebraska, picked to finish last in the Big Ten, posted a second straight convincing victory. Their 79-63 win at Wake Forest last Tuesday marked their largest margin of victory on the road since 2003.

They'll face their toughest test to date when 16th-ranked Creighton visits on Thursday.