I have a pair of fingerless glove-mitts, and have hunted successfully in -35 F with the use of hand warmers in the mitten part, and still could pull out my trigger finger for a shot.
BUT THEY ARE WEARING OUT, AND I CAN'T FIND GOOD REPLACEMENTS!
Ok, I've tried the neopreme fingerless glove-mitts, and the dang things tear EASY. My hands might sweat in them with some fast walking, and then I can't get 'em off, so they tear when I pull at them....haven't tried them in realy cold weather, and in a set, its kinda late to be changing gloves.
You find a pair, please post where you found them!