I have been searching for Magpro and 140 Accubond load data. I don't see anything on their site for this particular bullet. I'm looking to see what most are working up to on their test loads. I have shot 74 grains but it craters the primer and groups were not good. I have WLR primers and nickle plated Winchester brass. I was going to do start with 72.5 and load my way up but wanted to get some more input. thanks in advance!