shot placement. A friend killed a large 6 point bull with a .22long rifle once, but no one would recommend that.
But he did it ???
As a general rule here ...
2) We do not discuss ethics. To do so will result in the post or posts being edited or deleted.
... so I'll file that accordingly and as you clearly noted, none of us here will ever recommended it.
In most states if not all, .22 LR (.22 cal centerfire min) on big game is illegal.
BTW, welcome to LRH.