Asiad gold medallist Saurabh Chaudhary surpassed his own world record score to win the men's 10m air pistol event at the National Shooting trials on Saturday. Chaudhary registered a score of 246.8, beating his own finals world record score by a margin of 0.5 points. World championship silver medalist Anjum Moudgil won in the women's 50m rifle 3 Position event.