Hey deernhog:
I may be wrong but I agree with you, I have a hog head that a friend killed about 1978 up at Tellico Plains and it weighed about 450#. He told me that he shot it serveral times with a 44mag pistol, IIRC,240gr.HP and they had to follow up for a very long way and finally a 30-06 took it down for the count. Robert was a better than average shooter and the shots were in the shoulder.
A Russian boar, it has tusk/cutters about 4" long, looks like the ones in the pic.
HM