Hiker Deters Bear With Pepper Spray

“A large bear came out of the brush, went up on its hind legs, clacked its jaws at me, came down on all fours and started a medium-paced gallop toward me.” Kotter said he tried to remain calm and backed up slowly, but that’s when he slipped on some snowy brush and fell to the ground. “I rolled to my left side and put my arm over my head and shot the spray toward the bear,” he recalled. “All I could do was clinch my teeth and hope I could deter the approach.” At one point, he felt the bear’s paw step on his thigh. “And that’s what caused me to keep on spraying and spraying and waving my arm. I could hear it the whole time”/ Jim Mann , Kalispell Daily Inter Lake. More here.

Question: .357 magnum or pepper spray?