being a gun nut i find it funny i'm gonna say the following, but if ya gotta ask, your not prepared, no need to carry a gun. this is an alpha ambush predator, odds are if your the one in a million to get the jackpot, ya won't know it 'till your knocked down can't breath and are fighting for your life thru the shock of it all. these guys are incredibly strong. your only chance is to protect your neck, feed him your weak arm/hand and stick him with a knife. many attacks have been fended of just this way.