i ust started reloading and getting into the long rang stuff about a month or two ago. I also have a 7mm STW and plan on shooting the 160 grain nosler partitions this year. Not sure if there the best but at least its some input for ya.
I load for a few STW's all factory guns worked over and each will shoot 160 Accubonds, Fed 215M primers and 78 to 79 grains of RE-25 seated at 3.60 to feed from the mag. Not the fastest load but very accurate in those guns. Start a little lower and work up. The load has taken quit a few Elk over time. Good Luck, Dave
I don't know my charge but I use a 162gr. Amax on top of h1000 and it shoots and works amazingly well on deer elk bear and coyotes. Oh I guess a few rock chucks too. I think you will love that Stw. After owning the 300rum and 338 edge and the Stw I would have to say out to 1100 its my favorite
With the Bergers seating depth is critical but the second node will fit and feed from a standard Rem. 700 magazine in my rig. BTW it is an under 8 lb. Rig built for spot and stalk in elk and mule deer country.
WELCOME TO THE WONDERFUL WORLD OF THE STW... AND GOOD LUCK
I would use H-1000 that is the powder of choice for the stw with win brass and a fed 215 primer. With a 160gr accubond start at 77gr and work your way up my load for mine was 82gr of H-1000 but I would start lower like I said. The stw shoots flat and hits hard and I have found it to be very accurate in several different rifles. Good luck.