[2nd Amendment]

Some Canadian told me a semiautomatic shotgun with double ought can deflect a bear attack

[riverrunner]

Having shot bears with double 00 buck, yes it well work.

But having shot bears with rifles, shotguns and different pistol calibers.

I have found solid projectiles work better.

Buckshot lack pentation past 15 yards.

[Cobra64]

Slug.