I shoot Winchester W209 primers. They are $4.99 a pack. The Kleenbore and the 777 are $6.99 a pack and I am not someone that experiences problems with crud rings. Although when Wal Mart had a sell off at the end of season I bought them out of their Kleenbore for $3.99 a pack. I think there were only six left, but I still have one pack left.