Good point Dogjaw, The Lyman 46 shows data for 748 and H335 with standard large rifle primers and I have the SPEER #11 also and as you know all the Winchester and Hodgdon Ball powder loads were developed with magnum primers so I was going to ask if they are really necessary? Another powder I am interested in other than Varget is Ramshot Tac, which is just after 335 on their burn rate chart and is a ball powder also, supposedly without temperature sensitivity issues. Thanks for all the help!