Don t let these guys make fun of your 45mm bear gun.
45mm equals 1.772 inches which I believe would provide a significant blood pathway to drain a bear very quickly.
Myself I have shot 45acp which is about .452 inch and 9mm which is about .357 inch.
All I will ever say to you is, “Yes M’am, FRen.” :)
I just chuckle and remember that these guys don't live in bear country, and probably have never been to Alaska...where bears are like mosquitoes. As I said in another post, I know that my 9mm will just make the bear mad!