About 8–12 cents each right now. Bulk deals on the forums sometimes dip to 5–7 cents, but most sellers are asking around a dime.
I load a ton of Fed papers. Personally I won’t spend over a five cents a hull to buy them. They are only good for three reloads before they develop pin hole burns just above the brass. I load them three times then chuck them.
They really are wonderful, However, as others have stated, short life. Last batch I had didn't "smell" quite right for some reason
The newer cases come apart at the case, paper section far to often for me. Will stick in gun Barrel or in your Reloader both.