Until I see evidence that a 30-06 was actually stuck in his spine, I will continue to believe it passed through. Just because a a friend who said he talked to a surgeon, doesn't mean that either he, or the surgeon, is correct.
I'm not going to take the word of 'some guy' when I could have a coroner's report. And even then, I'd rather look through what was found, rather than take the word of the coroner on their own conclusion. If I hadn't done that, I wouldn't be able to tell you that George Floyd's coroner was saying nonsense when he died of asphyxiation because there was no damage to the throat, and no damage to the neck, and no damage to the ribs, and no damage to the lungs. In fact, he didn't asphyxiate at all, he had damage to his heart from the drugs he was taking and his body wasn't processing oxygen correctly, or circulating oxygenated blood correctly. The evidence for asphyxiation was media reports outside of the coroner's investigation.
And yes, I can see an exit wound, it's where the blood from his carotid artery poured out. I can see an entrance wound in his front neck.
Until I see evidence that a 30-06 was actually stuck in his spine, I will continue to believe it passed through.