I think this is still Monday the 4th Oct.
Note, if in a stand, your bullet will hit high by a couple to 3 inches depending on the height and range & height of scope on the rifle.
Black bears are dull black, most of the time with few to no features visible on their sides, making the actual angle of the bear difficult to see/recognize.
If possible, through the front shoulders/spine in a broadside shot is best.
A good hit through the lungs, broadside usually results in a short trail, even with a big bear. The lungs are up close to the leg line & do not extend back onto the side very far, like a deer.
Good luck.
Oh - appears to be about 6:45PM in Ontario now.