They make some fantastic offroad tyres! Aparently the buckshots are good offroad but hear from theaussys the sidewalls are week, I dont know of thier road tyres.
the buckshot mudder is supposed to have a strong side wall..... i can confirm this a i have a 5-6mm gouge in one of mine (right around) , from being stuck deep and a rock cutting in... still holds air and no problems off road been like it for for 5 months