Today I broke in a new Lyman mold(#358429). I had mixed lead with lead and Linotype in proportions of 3 3/4 lead to 2 3/4 pound of 50/50 lead to Linotype . I thought it would give a harder mix than it did but it turned out to be about BHN 8.2 according to the Lee tester that showed .078. Not only that but the bullets came out too small at .355-.356. Unacceptable for a .358 groove diameter in my GP100. I wasted about two hours today as they'll have to go back into the pot but, I'm not sure what to do about the mold throwing small diameter bullets...increase the hardness? The 170 gr mold gave bullets that on average were 160-161 gr.