Thanks for all the advice. Going to pull it out of the stock soon to examine the proof marks. In the meantime I found an article in the Feb.-March 1997 issue of HANDLOADER magazine that has some original data from Norma and Barnes Bullets as well as data from the author's testing. So, I have a good place to start. Also have some .318 bullets from Hawk Custom bullets. I also have some .321 bullets made for the .32 Winchester Special I can try