I shot a 5 shot group with it @15* one morning before a freezing rain set in....it was time to go then?
Poi and group size was same as usual. I would test it in colder weather, but we don't have many days colder than that in S. MS.
My brother uses it where he lives in the CO. mountains though. Lol i cast, size, and lube his boolits for him, so he uses what i use...he really likes Bens Red though!
Usually doesn't get much hotter than 100* to 105* with up to 115* heat index here, but it works great on that end too. Not sure how cold my brother has tested it in, but he does request Ben's Red on his boolits lol!