.Marnus Labuschagne completed his county time at Glamorgan with a record-breaking bowling efficiency in the course of Friday's T20 Bang suit against Somerset in Cardiff.The Queensland leg-spinner asserted career-best figures of 5-11 from 2.3 overs, including a triple-wicket maiden, to aid roll Somerset for 123 in 13.3 overs at Sophia Gardens.It was the most effective bowling efficiency through a Glamorgan player in the T20 format, enhancing Graham Wagg's 5-15 against Worcestershire in June 2013. Carried in to the attack in the tenth over, Labuschagne removed rival leader Lewis Gregory before cleaning Somerset's tail, along with his four remaining dismissals each bowled.Gregory's variation stimulated a frenzied collapse of 7-35, with Glamorgan navigating in the direction of a strong 123-run victory.Watch every ball of the England v West Indies test set LIVE & exclusive to Fox Cricket, on call on Kayo. New to Kayo? Beginning your complimentary trial today > Marnus Labuschagne of Glamorgan. Picture by Dan Istitene/Getty ImagesSource: Getty ImagesEarlier, Glamorgan submitted 4-243 coming from its 20 overs, the highest team total from this season's T20 Bang, along with leader Kiran Carlson smacking a career-best 135 (64) after gaining the throw and also choosing to baseball bat first.However, it had not been enough for the Welsh area to apply for the knockout blows, finishing 6th in their group's status along with six triumphes coming from 13 encounters.Labuschagne, that will certainly return home to Australia this week, completed the T20 Blast with 228 runs at 20.72 and also 15 gates at 12.86.