I shot a black bear years ago with a near dead-soft 385 gr cast bullet. Both shoulders were mushed, full gushing penetration, the animal flattened at the shot. But moments later it arched its back and raised its useless fore end off the ground and disappeared into the thick stuff for 50 yds or so before expiring. The load was a mild 1500 or so load (around 45 gr) of H322.