I know this subject has been beat to death as far as what caliber to use, but I'm wondering something a little different.
Did you fire a warning shot into the ground in front of the bear? (If so, how many shots?)
How many times did you have to shoot at the bear during the charge? (If in a group, list each shooter separately.)
Did it charge more than once?
Did you actually hit the bear or was muzzleblast that turned the charge?
What range were your shots at?
I'm looking for input from first hand experiences only. I'm sure we all have a brother-in-law who has shot 12 times in six seconds with his muzzleloader.
Let me tell you what I'm thinking:
The receiver on a pump shotgun is approximately 9" long, with a barrel length of 18.5", and the stock being approximately 11" long you get an overall length in the realm of approximately 38.5 inches. I have a side-by-side 12ga with 18.5" barrel, 3" receiver, and an 11" stock and you get an overall length of 32.5".
Professional Hunters in Africa use doubles for back-up guns because that second shot is just a trigger pull away. There's no chance of me short-stroking the SxS (like you can with a pump) and jamming after the first shot. And the double is 6" shorter than the pump (handier in the brush). Does anybody up there use a short double as a bear defense gun?