Have had good luck with Footjoy winter golf gloves when using double triggers in cold weather. Footjoy rain gloves work well too.

For dealing with hot SXS barrels while shooting clays, heavy briars or the occasional knife wielding bandit, HWI KLD100 Kevlar Lined Duty gloves from the police suppliers on ebay or amazon work fantastic. Unlike some Kevlar gloves, they are fully lined so your fingers and palms are protected from feeling the heat of hot barrels.