I don't have much experience fireing cap and ball revolvers with Pyrodreck or Tripple 777 , so let that part be known . Most of my experience is with real Holy Black Powder , like 98% of my entire life of shooting these revolvers .
Question is : how long will an "unopened" container of Pyrodreck last , and Tripple 777 last ?
Question #2 : how long will a open container last if the seal has been broke but cap is tight on the bottle ?
I have a bottle of each of the mentioned substitutes that are at least 10 plus years old and the seal has been broke on each . Are they any good ? Just shoot them and try it isn't the answer I am looking for , I need a real experience responce here , and thanks you very much if you can answer these questions .
Now go outside and play would ya !