I have some different rifle and pistol brass that i'd like to sell but don't know how to price it? Can you guys help with this? I've got .308, 243, 357 mag, 38 special and .45 auto rim. Also have a few bags full of 12 and 20 gauge shot shells. everything is once fired from the factory, no reloads. All of it needs to be cleaned. Is there a "per piece" guideline I can go by or what? Appreciate any help I can get. Thanks. jammer