Re: 7mm stw loads ???
I have shot and reloaded for the stw lots. I would not use Retumbo until you hit the 175gr bullets or higher even then I think it is a little slow. H-1000 seems to work in bullet weights from 140gr to 175gr really well. A couple more are R-22, IMR-7828 and R-25. I just got my custom back so I have not really had time to play with it much but I was getting 3054fps with 79gr of Retumbo and the 176 Cart and it shoots well but I think the powder is a little to slow. I am going to try H-1000. For the 162 A-max I am using 78gr of IMR-7828sc and getting around 3270fps. I would try the H-1000 and start at about 78gr and work up until it shoots well or you get to much pressure. I think I topped out around 82gr with a 162 A-max and was getting around 3250fps. I will say H-1000 is not going to give you real smoking velocitys but it shoots well. If you want speed with accuracy look at R-22, IMR-7828 those usally give out the best velocity. I mainly use H-1000 because it is not as temp sensitive as R-22 or IMR-7828.
Fast, Flat, and Accurate