When did Wu Zhu teach Fan Ruoruo how to use a gun?

Wu Zhu taught Fan Ruoruo how to use a gun in the third volume of the novel, chapter 49.

Wu Zhu taught Fan Ruoruo how to use a gun in the third volume of the novel, chapter 49.

Wu Zhu taught Fan Ruoruo how to use a gun in the third volume of the novel, chapter 49.

Wu Zhu taught Fan Ruoruo how to use a gun in the third volume of the novel, chapter 49.

Wu Zhu taught Fan Ruoruo how to use a gun in the third volume of the novel, chapter 49.

Wu Zhu taught Fan Ruoruo how to use a gun in the third volume of the novel, chapter 49.

Wu Zhu taught Fan Ruoruo how to use a sniper rifle in the third volume of the novel, chapter 49.

Wu Zhu taught Fan Ruoruo how to use a gun in the third volume of the novel, chapter 49.

Wu Zhu taught Fan Ruoruo how to use a gun in the third volume of the novel, chapter 49.

Wu Zhu taught Fan Ruoruo how to use a gun in the third volume of the novel, chapter 49.