Did Fan Xian use a gun?

Fan Xian had indeed used a sniper rifle in Joy of Life. He had used the Barrett M82A1 sniper rifle and successfully killed Yan Xiaoyi with a precise shot. The box Fan Xian's mother had left behind contained the sniper rifle and a letter for Fan Xian and Wu Zhu. Fan Ruoruo also became a female sniper in the film and used a sniper rifle to shoot the Qing Emperor. Thus, Fan Xian had indeed used a sniper rifle.

Fan Xian used a sniper rifle in episodes 28 and 46 of Joy of Life.

Fan Xian used the sniper rifle four times in Joy of Life. The first person to use a sniper rifle was Ye Qingmei. She used the Barrett M82A1 sniper rifle to kill the two kings who were fighting for the throne. The second time he used the sniper rifle was Fan Xian. He used the sniper rifle to kill the archer god Yan Xiaoyi. Fan Ruoruo was the one who used the sniper rifle for the third and fourth time. The specific time Fan Xian used the sniper rifle was in episodes 28 and 46.

Yes, in Joy of Life, Fan Xian used a sniper rifle. He had used the Barrett M82A1 sniper rifle and successfully killed Yan Xiaoyi with a precise shot. Fan Xian used the power, technique, and poison of the sniper rifle to successfully defeat Yan Xiaoyi. Fan Ruoruo also became a female sniper in the movie and used a sniper rifle.

Fan Xian had indeed used the Barrett sniper rifle in Joy of Life. He had used this sniper rifle to successfully kill the ninth-rank expert, Yan Xiaoyi, and had caused serious injuries to the Qing Emperor. Fan Xian's mother, Ye Qingmei, had left this sniper rifle in a box. She had instructed Fan Ruoruo to use it to help Fan Xian when he was in danger. Fan Ruoruo did use a sniper rifle, but she didn't mention who she killed. Therefore, Fan Xian used the Barrett sniper rifle in Joy of Life.

Fan Xian's sniper rifle was used four times in Joy of Life. The first person to use a sniper rifle was Ye Qingmei. She used the Barrett M82A1 sniper rifle to kill the two kings who were fighting for the throne. The second time he used the sniper rifle was Fan Xian. He used the sniper rifle to kill the archer god Yan Xiaoyi. Fan Ruoruo was the one who used the sniper rifle for the third and fourth time. The specific time Fan Xian used the sniper rifle was in episodes 28 and 46.

Fan Xian used a sniper rifle to kill Yan Xiaoyi and the Qing Emperor.

Fan Xian used a Barrett sniper rifle to kill Yan Xiaoyi and the Qing Emperor.

Fan Xian had indeed used the Barrett sniper rifle in Joy of Life. He had used this sniper rifle to successfully kill the ninth-rank expert, Yan Xiaoyi, and had caused serious injuries to the Qing Emperor. Fan Xian's mother, Ye Qingmei, had left this sniper rifle in a box. She had instructed Fan Ruoruo to use it to help Fan Xian when he was in danger. Fan Ruoruo did use a sniper rifle, but she didn't mention who she killed. Therefore, Fan Xian used the Barrett sniper rifle in Joy of Life.

Fan Xian had used the Barrett sniper rifle many times in Joy of Life, but the exact number of shots he had fired was not explicitly mentioned. The first time Fan Xian had used the Barrette was during the battle of Dong Mountain. He had tried to kill the Qing Emperor, but he had failed. He had even used the Barrett in the life-and-death battle with Yan Xiaoyi and successfully killed him. Thus, Fan Xian had indeed used the Barrett.