That must have really made some undo mess in the packing house.
What I've seen used most on cows were 22short,22lr and an occasional 22mag.
Actually, no mess. All shot was inside head.These were large bulls usually. I asked why they used the shotgun , they said because thay had one get shot with a 22 (don't know if it was a mag or not) ,and it just ticked him off and he came over the knocking shute crushed a guy's foot. Anyway that's what they used and still use today as far as I know.