Went bush pig hunting 2 weeks ago with some hounds. I just bought a 303 Enfield rifle for hog hunting because its almost impossible to buy a AR over here and the thick bush we are hunting does not make sense to carry around an expensive rifle. Was standing on a dam wall to get a better view of the river where the dogs were busy when this large boar came jogging up. I hid behind the wall the give him some time to get closer. The grass is quite tall and was difficult to follow him. Started to walk in line with its path to cut it off. I spotted the boar at 30 meters walking very slowly. I went for a brain shot behind the ear but missed with an inch. The boar immediately charged, the follow up shot was too early and it shattered the left front paw which made it veer of a bit. The third shot was at point blank range through the heart and it fell 10 yards further after it passed me. Was a close call. I realized the sites of my rifle do not align fast enough resulting in a close encounter. What sites will work better? I currently have the original ghost ring sites on the rifle. Its a 24inch full stock barrel. Any suggestions will be much appreciated.