“Handguns have proven to be 97% effective in defending against attacking bears.”
...said all the survivors...
However, it is very likely far more cases where attacking bears were killed by people armed with pistols are never reported. There are significant incentives for people armed with modern pistols not to report defensive encounters where they killed the offending bear with a pistol.
Before 1960, it was considered unremarkable; after 1975, it was legally risky.
Please find the non survivors.
Stories abound about handguns not working but they are just that.
If you can find documented cases of handgun failures,
I sure would like to see them.
Bear scat may have little bells in it, but I’ll bet they can’t pass a 8-inch 454 Casull.