ShooterMcGavin,
AMMO
+1 on the DoubleTap 200 gr loads. The difference is just that one is an all lead bullet with a wide flat point, and the other is a FMJ with a narrower flat point. For large animals you definitely want the widest flat point that your gun will feed reliably.
I carry the 200 gr FMJ in my G23 when I am hiking (Western Oregon Cascades and Coast range). If I had seen the lead flat points I would have tried those instead. You might by the variety pack and get a couple of boxes of each type of 200 gr. If the lead feeds fine then use it, if not then go with the FMJ.
THREATS
No, I have never been attacked by human or wild animal in 40 years of hiking the Olympics and Cascades. But, you are darn tootin' I carry all the time. I have never seen a cougar, but there have been several reports of attacks in the Cascades even just east of Renton/Bellevue, and one was sighted in the suburban wooded park in NW Portland.
I am not afraid to drive my car around Portland, yet I still carry. I am not afraid of hiking in the woods but it seems foolish not to carry a firearm. Better to have and not need then need and not have. When you are 10-20 miles from the trail head you are pretty much on your own and can be hours away from any help. When I am alone I am not as concerned as when hiking with my wife or daughters. That complicates the situation drastically.
* I have seen a marijuana patch in the Olympics just northeast of Elma. Fortunately not manned, but obvious signs of booby traps of some sort (trip wire) which I had no intention of exploring.
* I saw a black bear in Mt Rainier that looked way bigger than ANY black bear I ever saw (honey colored and I would say at least 500 lbs). Most I have seen are more like 150 - 3000 lbs. Fortunately it was on the other side of the river (at Indian Bar on the Wonderland Trail). That's when I decided if I ever run into an angry bear I want a .44 at least!
* Hiked to Bear Camp on the east side of Olympics and got pretty concerned when I was going in and out of think alder patches next to a creek and there were huge piles of steaming bear scat every 1/4 mile or so. That would have been ideal country to run into a mamma and cubs with no notice. The creek was loud enough it could mask a lot of noise. I tried whistling as a forewarning, but for some reason my mouth was a tad too dry.
* Hiked into North Cascades NRA from the west side valley onto Copper Ridge. At the first pass we met a guy who was bugging out with literally the shirt on his back. Said he spent the night in a tree as a large black bear tore his camp apart. He was cooking dinner on a stove when the bear started circling. He banged his pot and cup, waved his arms and shouted to no avail. As the bear got too close he climbed a nearby tree about 30 ft up. The bear destroyed everything, his tent, pack, food, etc. He was pretty shaken when we saw him. Later we ran into a ranger who informed us there was a renegade teenage bear lurking around the pass. Seems it had learned the pass was a choke point of hiker traffic and he could usually "scare up" some food there. She warned us to be very alert. Of course she was carrying a revolver. Hopefully it was a .44 but I doubt it.
* I have encountered a couple of suspicious persons at trail head and NFS gravel pit areas and been glad I was armed. Used to be you could park at a trail head and the only other humans you encountered were hard core hikers. Not anymore. Lots of news stories in western Washington and Oregon of hikers' cars being broken into and lone campers being murdered. Plus, lots of news stories of meth labs being found in woods/brush areas. even guys getting ambushed at gravel pits for their firearms (remember Platt and Matix in the Florida FBI shootout?)
* More recently starting to see more unleashed pit bulls, Rottweilers, etc. on the trails. Problem is they often range far ahead of their owners and there is no telling if they are wild, ill treated or just running for the fun of it, or when their mood might suddenly change.
So, no, none of these situations resulted in an attack on me. But I prefer to take these as fair warnings and prepare accordingly for the worst.
I chuckle at the posters who always chime in on these threads discouraging packing a firearm just because in most situations wild life is more afraid of you then you are of them. Well, duh! I am not concerned with the 99% of wildlife. I want to be prepared as best as I can for that once in a lifetime situation when I meet the wrong animal at the wrong time. Sure wish I knew which animal it would be, when it would be and on which hike. But I don't so I go armed as often as possible.