I know this is probably off topic but I thought it was interesting and thought I'd post it anyway.
My best friend got drawn for Elk bow hunting in Idaho and was warned by his Idaho friend that for the last two years they have encountered bear during their bow hunts.
My budy bought a 480 Ruger for handgun bear protection and decided to try a non-scientific "wet phonebook test" as seen in this pic.
The cartridge in the middle is a .44 Rem Mag.
The cartridge on the left is a hand load with a 350gr. Hawk soft point bullet.
The cartridge on the right is a factory Hornady 325gr. hollow point.
The 325gr. factory soft point penetrated 16" with the classic mushroom and had a recovered weight of 300gr..
The 350gr. Hawk bullet penetrated 23" with virtually no deformation at all and had a recoverd weight of 340gr.