Similar thing with me with a 243. Shot a big buck around 125yrds. Deer dropped in his tracks. Watched him kick flop squirm crawl grunt snort you name it. I could see him pick his head up and down. Against better judgement I tried to sneak down and get another shot on him. He got up, didn’t run or have tail up but just almost trot away. Went to where he was laying and didn’t find a drop of blood. Trailed in the direction he went, followed trails found not a thing. Not really into the call a dog fad but I thought the deer was worth it especially with no blood. Never found him. That was on 1/5 and still holding out hope I stumble up on him.