Yeah. My aunt worked a lot of trauma ER stuff and said the same. Close up, it’s basically a massive glazer safety slug with a thousand little wound channels. But it spills off its energy/penetration very rapidly as expectedMy granddad was the big poobah in the ER at Hillcrest eons ago. He had said that birdshot up close was the worst thing to try and repair. According to him you basically had to hope that you could pull the edges together because there wasn’t any middle. Probably really close like was mentioned before the shot charge begins to separate from the wad and it’s essentially a frangible round.