Putting together my first custom rifle

[cthunt]

After years of wanting to get a custom rifle I've finally decided start gathering parts. I've got an origin long action. Just placed an order for a 20" Osprey prefit 6.5 prc 1:7.5 twist. Im undecided on timney elite hunter or tt primary, but that may come down to whichever I find the best deal on. I've got an xlr element 3.0 aluminum chassis that I picked up used. But im not sure what magazines I should be looking into buying to avoid feeding issues being a 6.5 prc in long action. Any recommendations?