Perry got a 73-yard touchdown pass from Ahmed Turner to Mallory Claybourne to go up early, but it was all Liberty Christian from there as the visitors from Virginia rolled to a 49-7 victory.
Curtis Edmonds led Perry (3-2) with 67 yards rushing on nine carries.
Liberty outgained Perry, 331-146.
The host Sentinels (3-2) outgained the Raiders (0-5), 405-110, and scored on each of their eight possessions in their lopsided non-conference win.
Izaiah Spearman scored the lone touchdown for the visiting Bulldogs (0-5) on an 89-yard return of a blocked field goal.