Then again, were it loaded with slugs, it would kind of remove the defense of worrying about intruders. So, if his defense was he was worried about intruders, he probably had it loaded with Buck Shot. If he was awaiting the bear, it was rifle slugs IMO. In either case, it is a happy ending.
Why? I have slugs in my .357 magnum, and I don't keep it loaded in my house because I'm worried about a bear attack.