The 29-year-old country star tweeted a video of herself "packin heat" and practicing her aim at the shooting range Thursday. She also posted a photo of her target up close that showed off her skill when it comes to hitting her mark.
"I used to go shopping on a day off, now I go shooting!" she wrote.
She even described her target practice as "Fun as all get out!!!!"
Rimes, of course, exercised caution at the shooting range. She wore ear protection and safety goggles.
"Soooo fun!" she told a follower. "Always safe!!!!!"
And although Rimes knows her way around an M4, she's a big proponent of keeping the peace. Glanville, who was married to Eddie Cibrian before Rimes, told E! News that the trio had gone to therapy together. Despite Glanville's heated comments about Rimes, both women have made a conscious effort to get along for the sake of Cibrian's children.
—Additional reporting by Ken Baker