I almost always carry fingerless gloves when I go hunting. They keep your hands warm when a cold gun would otherwise numb them. They are great when crawling on the ground. A leather pair will keep your hand from slipping and from chaffing when supporting the forearm over a rock or tree. With the fingers free you can still grasp things as usual, including cartridges, and you will have true finger to trigger control.

Sometimes I will wear a fingerless glove on the forearm hand but keep my trigger hand ungloved. If it is very cold I will wear a full glove on my forearm hand and a fingerless glove on my trigger hand.

I believe one should always have a pair of some type of gloves when afield, even if they are only a light pair. They don't take up much space or add much weight. Gloves are one of those things you don't miss until you need them and then you REALLY miss them.