I've been hiking fairly regularly up here in northwest MT with my dogs and carry a Marlin 1895 SBL loaded with Barnes VOR-TX 300gr ammunition (.45-70 Govt.). Maybe an 870 would be a better choice. I should probably buy a can of bear spray but keep putting it off. There are supposedly black bear, mountain lion, wolves, coyotes, deer and elk where I hike but so far I've only seen deer, deer poop, elk poop and what is most likely bear poop but my dogs run all over so they most likely scare most critters away. I would love to see a mountain lion but they're elusive for sure.
I spend quite a bit of time up in the Flathead Valley area...Bigfork, Kailspell...to
Glacier Park.
I will be hutning up there soon.
I also, have a Marlin .45-70 actually it's now a WWG .457 Magnum...slicke up & customized by WWG.
But good as it is, don't know if it could be employed quick enough in this close range surprise...bet he almost stepped on these bears...10 yds. or less, forget it.
I'd probably go for my S&W .500 Mag. Revolver if I could...unless the Rifle is in hand...ready to go, kinda iffy.
I have a Ruger .416 Ruger Mag. , TWO .375H&H Mags ALL bolt guns, but they may be too slow unless chambered & safety off, not the best way to proceed safety wise.
also a nice compact Merkel SR1 semi-auto...in 9.3x62, which may be a tad quicker?
But given the odds, and since Grizz is "protected" , no fear of man, and yes, those "shots' we take at that Elk...may be the DINNER-BELL...don't ever want to find out!