I have been casting 00 buck and the Lee 1oz slugs. I looked at the load data Lee puts in with their mold and also the Lyman shorgun reloading manual. It seems like every load is using a specific hull, specific primer, specific wad and of course a specific powder. Trying to find all the specific componets for one load is quite a challange. I have hunderds of hulls I have picked up but can't tell what they are! Is there a common set of components that can be used for both buck and slug? Is there really a difference in the brand of primers? Any help would be greatly appreciated.