I built my first rifle. It is a Savage Weather Warrior that was a .243 but I put a CBI 6.5 Creedmoor barrel on it. My first barrel swap. I think it went pretty well. I even bedded the action for the first time to the factory stock. Now I am looking to reload for it. I plan to shoot 140gr A-max. Maybe even try the 140 Berger VLD's but have never used Berger. Are they harder to reload? Should I just buy factory loads and see how it shoots then just reload the once fired brass or buy new brass and start from scratch? I haven't bought any dies yet. Should I go with neck or full length dies?