What magazine do I need?

[Blaster01]

So I'm thinking about doing a budget build off of a savage axis action that I got for free. The donor rifle is a 30-06 so it's a long action. I'm looking at the oryx chassis and hopefully will be chambering the new barrel in 6.5 creedmoor. What magazine will I need that will work with the oryx chassis for a long action but that will fit and feed 6.5 creed? Or am I overthinking it and the one that comes with the chassis will work?