I couldn't scare up load data for this projectile in my Speer book with the Hodgdon powder I have or for this particular A Max bullet. After searching I found nothing on the Hornady or Hodgdon website. So I came up with what may be a workable solution. Tell me if this is a safe way to work up a load. I found load data for a Sierra 155 grain bullet but I wasn't sure about the COL of 3.225". I measured the projectile length on my 175 grain Barnes bullets and compared that to the Hornady's. There was .115" difference in bullet length. I used the COL for the 175gr bullet and reduced it by the .115" difference. My thoughts are that the same case volume would be had and I could avoid any over pressure issues. I am starting my workup with the lightest charge for the 155 grain Sierra bullets. Sound workable?