I'm building a 6.5 then a 6mm at a later date but since I have to buy more dies I'm planning on buying Wilson. Their dies require an Arbor press. Most benchrest shooters that reload at matches use this system as they are compact and easy to pack. They also mount a dial indicator to make things more precise. Once I get my Wilson dies I'll have a better idea if a "commercial" press would do the job properly but I suspect they would lack the "feel". I suspect I'll be buying a Harrel's or K&M.