Ok, hopefully some of you have experimented with it. I know a bit about commercial O/C for the self-defense market. There is spray (cone) and stream (jet) delivery, and for the most part, you want to avoid spray anywhere outside for obvious reasons. For anything compact enough to conceal on the person, about 10-12ft is the maximum range. Now, I understand that the bear products are larger, not having to conceal them. However, how much extra range can they reasonably generate?
A half-ton beastie in a forward trot is not going stop on a dime, as it defies the law's of inertia. Even at 30ft, TEN YARDS, that's but a sub-second for Mr. Grizz to be upon you. Assuming he/she gets a stout snootfull, what is their reaction? Anger, and charge? Fear and retreat? Frustration, and standing its ground?