10 mm.
I don't have a 10mm. Think my .460 Rowland would be enough?
Of course a 44 mag has more energy than a 10mm but what 44 round has more than 2,000 ft-lbs energy (your quote of 3X the energy of a 10mm).
The 10mm also carries 15 rounds with a quick 15 round reload?
15 Rounds out of a 1911 platform, the subject of this thread, would be impressive. (No, a double stack is NOT a 1911)
For many years, the World Record Grizzly Bear was taken by an Indian Woman named Bella Twin in 1953.
She used a single shot .22 rifle.
Y'all need to man up. If a woman can do it, . . .