I have 60 Treso nipples for Pietta pistols (6mm x .75mm x 200"). they've only been shot twice. There are enough here to equip 10 cylinders using all six chambers, or 12 cylinders using only 5 and keeping a stock one in the unused chamber. that's enough to get you through a full 6 stage match and not need to reload, which was my original plan. Here is a great upgrade for more reliable operation of your BP pistols. I'd like to sell them all at once if possible but open to offers. They are shown mounted on nipple holders I got from Kingsnake that are NOT included, but I highly recommend for ease of cleaning and storage of the nipples. These are no linger made I'm told and they went for $27 for a set of six nipples. 10 sets for $130 shipped to your doo in the USA.
If you have any questions feel free to ask.