I have to do something I never had to do. My friend brought over one of those cheap Spanish flinter pistols he picked up from an estate sale. It will not spark because the frizzen is too soft and I am sure it is made from tool steel and not hardened properly.
I usually replace parts and locks but this gun is not worth spending $2 on. So my dilemma is what temperature do I temper at after hardening to get the best spark.
I plan on heating it cherry red and dumping it in water but it will be too hard and brittle.
It's funny that after over 50 years of building and repairing muzzle loaders, this is the first time I am faced with this.