My Hawken went off at -7° for my first muzzleloader kill.
I have both. A kit TC Hawken and a CVA Optima. 2 completely different animals. Patched RB for the Hawken with FF and a copper bullet with 777 or BH209 for the scoped CVA.
Do you have anybody that can help you that is knowledgeable on muzzleloaders?