WINNIPEG — Mikko Rantanen found a stick he liked, and shot the Colorado Avalanche into the second round of the Stanley Cup Playoffs. The Winnipeg Jets played their best game of the series facing elimination, but the Avs continued to put pucks past the pending Vezina Trophy winner and advanced with a 6-3 victory Tuesday night in Game 5 at Canada Life Centre. Colorado won four straight in this series after dropping Game 1, and will now awaits the winner of Dallas-Vegas in the second round. “How hard we worked and how hard we battled this series was amazing,” Nathan MacKinnon said.