Personally I'd far rather have a 6.5-06...it's far easier to build, dies are standard (as are the 6.5-284) and brass is easy to find.....any .25-06 brass or even .270 brass will work...

Performance is similar and cases so stamped are available if you wish. All you need is a mauser '98, a springfield 03-A3, an Enfield P-17 or any .25-06,.270,.280,.30-06 action ever made.