I wouldn't bring any bullets. Just bring your pocket knife, and then whittle yourself a bow and some arrows. Make a horsehair snare and trap an animal and use the sinew to make a bowstring. Search stream beds for rock suitable to broadhead construction, and then practice a few thousand shots to become proficient. THEN, go stalk your caribou within 20 paces and make a shot on the vitals. After that, you can kick yourself in the ass and say, "I should've brought two boxes of bullets!".