Bridgetown [Barbabos], June 6 (ANI): Australia spinner Adam Zampa reached the milestone of 300 T20 wickets on Wednesday, becoming only the second bowler from his country to reach there. Zampa accomplished this milestone during Australia’s ICC T20 World Cup Group Stage game against Oman in Barbados. In the game, Zampa delivered a destructive spell of 2/24 in four overs. In 258 T20s, Zampa has taken 301 wickets at an average of 22.64, an economy rate of 7.44, and a strike rate of 18.20. His best bowling figures are 6/19. The other Australian with 300 or more wickets in T20 cricket is the pacer A…