Okay factory second Midway .264 Spitzer 140 Grain bullets that Midway will not reveal the manufacturer. I spent some time on live chat and basically was told they have so many different sources they cannot tell me whose bullet it is. I was told to use load data for a 140 grain Spitzer (JSP) bullet. I do not have the $ to buy all the reloadaing load data manuals but I would like to purchase the one that has the most extensive information. Any suggestions?