Heard the thump but didn’t see the shot through the smoke. I was pretty confident it was a good shot. I was wrong. I watch him limp over the hill into a pasture. I was pretty upset with myself, but determined not to let him suffer any longer than needed. I saw him bed down and made a stalk on him in a shallow valley, I ran out of cover at 300 yards. I tried to close in, but he spotted me and walked another 300 yards directly away from me, and bedded down on a cattle trail in a low place at the base of 2 hills. I backed out and made a 3/4 mile loop to the backside of the hills. I decided to come up snd around the far hill so I didn’t spook him any further and possibly onto neighboring property I would also be coming out of the sun. I got within 400, dropped my pack and started at him hunched over for a while, then crawling, and then finally belly crawling as I got closer to where I hoped he was still bedded. I spotted the tips of his horns at 120 yards, I decided to just wait it out until he stood up so I could shoot.