I am in the market for another Rem 700 with the idea of wanting to customize it in the near future. If I buy a short action (270 wsm), would I be able to go back to a long action when rebarreling (like a 7 rem mag or 30-06) if I wanted. And the same the other way around. If I bought a 30-06 would I be able to rebarrel it with a short mag caliber. Thanks