I've been reading articles that suggest max loaded hard cast boolits have a better penetration than heavy factory loads like Buffalo Bore. I carry a 10mm on my ranch for protection against bears. We even have an occasional grizzly wander through. Carrying a shotgun is not an option. Trying to carry tools and fix fence pretty much makes a long gun a real hindrance. So which would penetrate bear hide and do the most damage? What would be the best weight?