McGunner I didn't buy any, just noted their presence. I still have about 80,000 of the roll style paper [american western] left from my Y2K stash. When I got the tap-o-cap I tried all I could lay my hands on, they were so cheap [the ring style] that supplies of them vary from lot to lot, let alone from various manufatures. All I can say is if you find some hot ones buy 100K or so. IIRC some of the plastic ones worked well if you added a pinch of FFFFg and just used them as bought, though some had too soft of a body to work well on C & B guns, and had to be cut from the plastic and mounted in aluminum caps. ROA's don't like plastics, 58 NMA like them better, IMHO because ROA hammers don't go all the way to the nipple and NMA's do. Experiment, next time I'm by a wallgreens I'll pick some up and try them will let you know how it works out.