Not a bad commercial for the 10mm, of which I'm a fan. I believe we've discussed bear defense handguns in other threads so it all depends, as the saying goes. Size of person, bear etc plus the chambering matters. This line here "A proven, full-house 10mm load offers power, velocity, and accuracy on par with big-bore revolver rounds." is not even close to reality. Does the author even know what a big bore revolver is? .480, .454 .44mag+P , .500 SW mag, linebaughs, and others are 2-4 times as powerful with round fps exceeding his 1250 number by quite a bit.