Thread: 308 ELD-X 178gr experiment - bullet or powder manufacturer?

Ive gotton to the point where with any new load and thats not often now I zero at 100 and over the chrony do a drop chart out to 4 or 500 m. I then set my preferred zero and do a quick reshoot at say 300 and 500. Im yet to find a ballistic calculator that predicts the drop chart accurately across the full range.
For longer distances I have loaded the figures Ive got into an xl spreadsheet and produced a predictive decay curve that appears to be accurate.