Hi Sotxlr
Welcome to the business,I hope you'll like it as much as I do...Although I'm no expert,far from it,stick to 2506's advice,get the Sierra manual and read it thoroughly,take your time and make sure you understand what's at stake;it'll be easier to determine what tools you'll need. There's so much it would scare you if I told right away out of the blue.Be patient and curious,go to various forums,check what people use. One thing that's for sure from what I gathered helter skelter is buy a Lee collet die for 7 Rem mag,that's a must,and it's cheap(check Factory Sales.com for it),then go to Sinclair and get a Forster benchrest seater and full length sizer,a good single stage press (Lee classic cast seems hard to beat for the money at Factory Sales),get loading trays(sinclair)chamfering tool(sinclair),primer pocket cleaner(Lee),decapping die(Lee),flash hole deburring tool(21st century shooting supplies),as to scales and powder dispensers,my goodness,there seems to be so many of them,you'll get dizzy a bit,and they are kind of expensive so ask the experts(here),buy good stuff and cry once(as the saying goes around here). Well,Sotxlr,welcome here,good luck with your quest,and above all,enjoy the trip and stay tuned.