Dear Mas, .44 Mag is the most often recommended handgun choice if large predator type critters may be around, but you have also mentioned the Glock 20 in 10mm as being viable choice if a semi-auto is preferred. I can also see the logic about the revolver performing better at muzzle contact distances which are so often the norm when animals that are big and fast attack, but can also understand why someone would want more rounds. I know your partial to the S&W 44 Mag. Mountain Gun, but Smith also has a few .44 Mag Scandium models with 2.5" barrels that are popular with hikers and campers. My question is does the .44 Mag round lose too much velocity in these short barrels that they might not really be anymore effective in actual performance than a hot 10mm round coming from a 4-6 inch barreled Glock? Thank you for your time.