The only 243 kill that I would say had a bullet issue was with a factory remington loaded with sciroccos I watched an antelope take 3 to the chest and one to the liver at 300+ yards. He just stood there so the hunter kept shooting. After a couple minutes he just fell over, never taking a step. When we opened him up, it didn’t look like there was much damage but he drowned in his own blood. Had he run it might have been a long tracking job.