Which bullet weight?
I load 178 gr ELD-X hunting bullets. I used the same start load data for 180 gr bullets and worked up to a load that I liked. I haven't used the 155 Hornady's, but my 155 gr Berger load is the same load I use with 150 gr SST's.
I played around with the 200 gr ELD-X bullets in 308, but in my very limited experience haven't found a load I like yet. Probably will save the 200's for my 30-06.