I have a 7.65 argentine mauser that I have decided to reload for. I want to use it for hunting therefore I bought a barnes 150gr (.311) bullet for it, winchester brass and winchester large rifle primers. I have searched and have been unable to find loading info for this particular setup. I work during the day and cannot readily contact barnes. I have contacted them before and was strickly told that using other loading data was not safe. I was origonally looking for a bullet of same weight to use loading data on. Since I cannot even find this info on the Barnes website I have no idea what powder to use. I do know that the most common loading data I have found for this is with IMR powder. Does anyone have loading data or info about this particular combo??????????????????????????????