Gents, some very good info in the above posts. I will disagree with the 9mm been as effective as the 45 as a stopper if using bullets of the same design. If you are dispatching an animal and brain, neck shooting it then yes, both the same. Shooting in the heart/lung area with rounds that are not fast then the bigger calibre damages more tissue and lets blood out quicker so incapacitates quicker. e.g. The Moros in the Philippines. The bullets back then were not much chop and a 45 Long Colt carried a bit more punch than a 38 simple physics. Both tended to just put straight holes and not readily expand . The rifles were probably using FMJ's or hard projectiles so just needle holes, later FMJ technology had the bullets bend on impact so cut much wider wound channel.

I to now days would rather carry a high capacity 9mm or 40cal. Reason for the 40, if shooting a two legged type and going for a brain stem shot from the front a 40 will get through all the bone without deviation, not all 9mm's will. Yes this is a very specific shot but when needed it is needed.

John, the Jericho was copied by Tanfoglio you might know this pistol.