In the winter, I use men's lined leather dress gloves for shooting. These are fine black leather gloves that you would get at a department store and could be worn with a suit and overcoat. These gloves are actually one of my personal shooting secrets. I have never seen anyone else use this style of gloves for shooting, but they work quite well.
These gloves are not cheap, and they are not tough, but they are reasonably warm, and they provide excellent dexterity. They are made from the proverbial "glove leather," and typically have a fine lining for warmth. On some of them, the lining is cashmere, which seems "fancy", but actually gives an excellent balance of warmth and dexterity.
I usually spend more than $50 on a pair of gloves, and they last one to two winters of daily wear and periodic outdoor shooting. So they end up costing more than I would like, but relative to my other shooting gear, they are really not a big expense. I make a point of not shovelling snow in these gloves, since it wears them excessively.
With a good pair of dress gloves, my trigger finger is fully covered, but I still have enough feel to control a light target trigger. And I have enough dexterity to load a .38 revolver with my gloves on.
If you are interested in these gloves, you can probably try some on anywhere that men's suits are sold.