I realize this is a really different charge but perhaps a story of interest;

Partner and I were on a long river trip and had stopped for the day after catching a few grayling for dinner....after dinner we poured a good McClelland's Islay and sat on the beach enjoying the evening......I saw something enter the water across the river [150 yards] and start swimming toward us.....binos revealed it to be a medium grizzly....I got the 12 ga and slugs and sat down for another sip.....when closer, we stood up and hollered at the bear to make ourselves obvious....he never wavered as he swam toward us....before he could touch bottom, I put a slug through his head at about 20 feet.....and partner and I lived happily ever after.