Bowhunting in AZ I always carried a 4" pre-lock S&W .357 Mag. I always felt good having it, especially upon returning to my truck and seeing another vehicle nearby or any men mulling about. Not knowing what their intentions were I always felt better having my backup.
I shot a diamondback with it when I was bowhunting rabbit once.
Another time I was quail hunting and had my 870 loaded with birdshot. I came over a ridge and down in the valley were a couple of big 'yotes. One took off running up the opposite slope from (my) lower left to upper right. I had just got my first box of Buffalo Bore Heavy's and that's what I was carrying that day. That 'yote was 80 to 100 yards away running full steam, I led him a foot or so and aimed a little high. I touched off one of those 180 grain slugs and it impacted the slope just above his shoulder, pretty much exactly my POA. I didn't think those Heavy's would shoot that flat, if I would have held just slightly high on his shoulder I think I would have sent him rolling. If I wasn't able to just quickly lean my shotgun (safely) on some thick brush and draw and fire I wouldn't have been able to get a shot off. I had a couple of buckshot shells in my pocket but they wouldn't have done much good even if I was able to empty a couple of 6 shot out and get at least one of them chambered. Thanks to my mag I at least got a great shot off, despite misjudging the trajectory of the new rounds. Close only counts in horseshoes and handgrenades!
I'll always feel better having a sidearm with me when I'm bowhunting, but during rifle or shotgun hunts I generally prefer not to have the extra weight. Case in point was during my bull elk hunt last November. I was just carrying my rifle (6.5x55SE w/160gr handloads) and got into this crazy feeder canyon. I was moving down the center of it towards Willow Creek Canyon (Unit 4A) and I got into some outrageous lion cave complex. I even found a deer spine/ribcage at the entrance of one of them.
I'm picking my way down this steep ravine with giant fallen pine trees criss-crossing over my head and walking on big boulders with all kinds of brush poking up between them and imagining a cat crouched in the shadows ready to jet across one of those trees and nail me like a freight train. I thought that I could even easily lose my balance and drop my rifle down in between some boulders or something and kind of wished I had my .357 on my side rather than back in my truck. I pulled my Puma White Hunter out of my pack and strapped it on. It made me feel a little better having it on the belt, but I knew if there was a cat targeting me in that canyon I probably wouldn't have much chance unless I happened to see him and get a shot off.
Here's my Smith and that Puma:
I love that Smith and feel great having her stoked with hot 125 grain SJHP's for cougar/2-leggers or the 180 grain Buff Bore Heavy's in Blackie country. If I'm in snake terrain the first round is a CCI shotshell followed by either 125 or 180s. I normally have 2 speedloaders on my belt as well. It's heavy and makes for a somewhat achy back at the end of a long day of slip hunting though. I'd like to get something smaller, like an SP101 but I hate to lose the barrel length. 4" to me is the shortest I care to go with the .357.
I transitioned from carrying that .357 in the city as my CCW to my XD9 service but I packed that smith for a couple of years. I've thought that a 10mm might just be the perfect "do-everything" sidearm but I have this attraction to revolvers and to this .357 Mag in particular. Also, in a pinch it would be a lot easier to scrounge either .38 Spcl or .357 Mag instead of 10mm.