I think that if I had to shot from a glock pistol at a charging cougar that I would prefer the 10mm from a stock gun but if you increase the springs the 45 super is a superior round 10mm 180gr @1220 595 ftlbs the 45 super 185gr @1300 695 ftlbs.
But as a woods pistol I think I would drop a Clark 460 Rowland conversion on my 1911 for $300 and really have a round I could depend on. The 460 Rowland will generate 185gr JHP @1500fps-971ftlbs or a 200grJHP @ 1450 750 ftlbs and maybe even drop the bear that's chasing the cougar lol
Cuba