Hafthor Bjornsson, who you might know best as Ser Gregor Clegane or "The Mountain" in Game of Thrones , has broken another international strongman record.

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According to CNN's Bleacher Report , Bjornsson performed a world record throw at the 2015 Arnold Sports Festival, tossing a 56-pound kettlebell 19 feet and three inches into the air using just one arm.According to his Instagram account, this broken record came after a shaky start: "I did an awful mistake in the deadlift which cost me a lot of points! Yesterday made me feel a little bit better though. I did a weight for height event on the main stage. I went over 19'3 with a 56lbs weight and that is a New World Record!!"This is not the first weightlifting record broken by the 6'9", 419-pound Icelandic weightlifter. Bjornsson smashed a 1000-year-old "World's Strongest Viking" record last month by carrying a 1433-pound (650 kilogram) log a short distance.Game of Thrones' fifth season premieres Sunday, April 12th at 9:00pm ET/PT.

Katie Williams is a freelance writer and journalist. She tweets at @desensitisation and hopes that one day, a bird will tweet back.