Who plays the firearms expert in shooter?

In the television series "Shooter," the character of the firearms expert, Bob Lee Swagger, is portrayed by Ryan Phillippe. The show, which is based on the novel "Point of Impact" by Stephen Hunter, follows Swagger as he becomes entangled in a conspiracy after being accused of a crime he didn't commit. Ryan Phillippe's performance captures the character's skills and depth as a former Marine sniper.