Recently read an article, and a warden felt, Bear Spray was as effective, unless your an excellent shot on fast moving target.
This past year two hunters in Northern Idaho were hunting black bear, one wounded a bear, turned out to be a Griz, when tracking the bear it charged, the shooter fired again, they thought the Griz killed the other hunter, seems like a shot from the hunter was responsible. They did not know their own limitations. I would think the tracks should have given them reason to back out and call a Warden.