I took my new to me Remington Rolling Block in .43 Spanish to the range and the very first round had a catastrophic failure with the case. It broke apart with one piece in my hand and the other still in the breech. Burner supplied to solution to getting the broken piece out which worked like a charm. However, one of the people I was shooting with is a metallurgist and his opinion is that the brass seemed to be brittle. An examination of the brass reveals the appearance of never having been annealed. I have proceeded to pull the other 19 rounds and will be annealing the brass in due course. The issue I need help/comments on is, as I was pulling the bullets, I discovered that the powder was coming out of the case looking more like black talcum powder instead of FFg black powder. I am wondering if this pulled powder is OK to use or should I use new powder to reload with?
To be honest, I am leaning towards loading with new. Better to be safe than wind up with a destroyed rifle in my hands.