My Nucleus action and Proof Carbon barrel are arriving just a few days before I depart on a 3 week hunt. I won't have much time to test the various load parameters and this is my first 28N. It's been chambered for ELD-M 180s but I want to start with Hammer 143s because I've heard that they are very easy (quick) to develop loads for. Can anyone suggest beginning charges for the 143 Hammers using N570? I've heard that the jump isn't critical for Hammer bullets. Does anyone have a suggested jump or COAL to start with? Much Thanks in advance for any help me to get started in the right ballpark!