Zzulch, I’m stuck on old toy revolver red ring cap. I’m using them because they work. In the photos ther are pictures of these being forced into the cap cup. As I have several thousand of these I’m staying with them.. the newer product is useless unless you add a little ffffg powder . Where we lived in West Texas a secon hand store sold old out of date red ring caps 200 for a dollar. Every time I went in I got a couple of dollars worth. The red plastic has deteriorated but the primer charge is as strong as ever.. I took one of my Remington’s to the range yesterday, the percussion caps made from the old toy caps did not fail. The newer caps did not work. The photo is of the caps that work. About 500 for $3.00. I’ve been saving these for 7 or 8 years. I have more. So I haven't tried any other charging method. I think I’ll experiment just to know.