Remington Black Powder Bag of 3 Cyclone Shells with 100 Retainers for .50 cal black powder unopened in good condition. On the back is: Use only with Cyclone Quick Starter. For pre-loading patched balls, conical bullets or sabots. Use of Cyclone Shells gives quickest possible second shot. Available in .50 and .54 Cal. $10 each, we have a large number in stock so contact us if you want more than one. We also have the .54 caliber in stock. Will ship anywhere in the USA, buyer pays freight and insurance.