"IF" we were speaking of a single hit then a .22 short would be a far better killer than any of the above-mentioned loads, if legal & provided you were a good enough shot to place it where you wanted it.
Well, it certainly would be, if you hit the target. That's why mobsters use .22 short intead of a single #8 for their hits. Seems like your contention is that the 28 has a longer "effective" range, rather than just a longer range, subject to centering the target in the pattern at that longer range.
