I am having trouble with my tc pro hunter using blackhorn 209 and regular winchester 209 primers in cold weather. Im shooting 100 grains of powder. In warm weather it shoots like a dream. 3 shots touchin at 100 yards all day long. Once it got cold out It dont always go off. Pop out the primer out and it has gone off. During the last gun season it took 4 primers before the gun went off with a hang fire. Missed the deer at 55 yards with a wide open shot. The breech plug was cleaned the night before and was clean as a pin. I had the primers in one of those rubber primer holders and had three speedloaders with a primer in each. When the gun did finally go off, it was with a primer from the speedloader. Are the primers in the rubber holder drawing moisture where the speedloader primers are open to the air at all times? Does this powder need a magnum primer to ignite in cold weather? I clean the gun every night whether it was shot or not. I know blackhorn is not corrosive like black powder but I clean it anyway. Is this a common muzzleloader problem? Whats yalls thoughts? Any tips or suggestions? And before anybody asks, no I havent contacted Blackhorn about the problem. I just thought of it.