A hunting pal and I both have a touch of Raynaud's, so bird hunting when it's below 35 F can become painful and incapacitate a trigger finger after a couple of hours. In New England in grouse country, it's usually below 40 in November.
Generally, Raynaud's is not a problem with good fleecy gloves, but you can not do shotgun shooting with those. Bulky gloves do not fit through a trigger guard, at least quickly, and are not right for holding a firearm firmly.
Some reviews.
Assuming we have some upland hunters among our readers, what do you like use use?