Nosler partition, Barnes TSX, etc in 180gr will work nicely. I prefer both shoulders on bears with a gun in my hands, as mentioned the vitals are forward and protected by larger shoulder blades then deer type game have. Though to describe the perfect shot via key board it would be the 1/4 away. Simply draw a line to opposite leg and fire right thru, this will ensure vitals anda busted wing. Even for the largest of blackieboars,it will spella quick/humane harvest.

Best of Luck