That's a column of lead in inch and a half diameter and almost an inch deep moving at 900 fps.
That'll wreck just about anyones day...
Some years ago, at one of those informal rural "shooting spots" that used to be more common, I tried various 12-gauge loads on practically everything I could find. The two most memorable were the rifled slug vs. watermelon (all that was let was a pink mist hanging in the air and a wet spot on the ground - couldn't even find an intact seed) and the birdshot vs. 4" diameter pine tree. From near muzzle-contact range backing out to a foot or two, low-brass #6 shot would blast the tree cleanly in two.
If #6 shot can fell a small tree from up close, you know it would tear the innards out of a bad guy from 10-12 feet. Google "shotgun wounds" and you'll quickly see forensic reports about massive lung damage and shredded aortas.