Seems like there are a lot of people that are having or have had problems with donuts appearing in the 284 brass after a use or two, which can be a big problem with the longer bullets---particularly if the brass was necked back up to 7mm from a 6.5 -284 case. What seems like to me works from experiences of friends is to have the free-bore lengthened out to maybe as long as .250" in order that bullets can be seated off the lands a ways if required and still not be on or even really close to the donut inside the case. That also seems to not affect accuracy much at all and is a way to deal with the donut problem---just go longer on the free-bore and ignore the donut. So, what kind of solutions have you all found that work? i'm gonna bet that there are some good solutions floating around out there that work fine and DO NOT require a bunch of fooling around with brass. Any comments/ideas/solutions any of you can pass along? I'm open to trying jsut about anything that seems to relieve the problem, especially if makes accuracy decent!