Depending on how you plan to do the roll crimp, plastic shells work better as the heat softens them and you can make beauty roll crimps. That is if you are using the crimper that fits on your drill or drill press. The only other things you need besides powder and shot is proper sized felt wads, preferrably lubed with b/p lube, and card wads. One dram of powder is equal to about 27grs. of black, though you will have a tough time equaling smokeless velocities due to todays poorer quality B/P. MT Chambers sells all manner of BP Shotshell wads and lubricants.