Read it and laughed. "While we have not tried it, based on our knowledge of other like-designed revolver loads in 357, and 44, this bullet should easily penetrate a large bear’s skull. "
If that's all one had, it's worth a try - go down fightin' - but if one knows there to be in an area with something that could willingly and wantingly do you harm, wouldn't it be sensible and worthwhile to bring a better tool for the job?
Should a circumstance develop, with adrenaline and fear in motion, putting a tiny bullet into an area that's moving in hopes of stopping said movement is slim.