I'm running a Remington 700 custom 1-9¾ twist 26 inch barrel unknown manufacturer 83.1 grs of H870 with a 175 gr Sierra c.o.a.l 3.685 2997 fps. 150 gr Sierra Game Kings and 76.5 grs of IMR 7828 @ 3.690 c.o.a.l 3247 fps
I mostly use IMR 7828 just loaded a few 162 gr SST to finish up the can of powder I was surprised. Shot tighter than what I thought it would. I have loaded 175 gr sierra game kings up with 83.1 GRS of H870 shot under a inch at 100
I had my STW built but even breaking the barrel in it shot tight with factory rounds now since I've started loading and expiermenting its getting even better
The 162 SST at 73.2 is max load in hornady manual. I've shot this load at 300 yards still tight at 1½ to 1¾ in groups. I was going to try a grain more. Why screw around with it put 3 shots in almost same hole is pretty decent considering I shot off a sand bag
I load by the book but I've never under stood why people hot rod there bullets and then complain when they burn the throat out. If you want speed load a lighter bullets.
I have 1-10 twist in my STW got a good load worked up with IMR 7828 and 140 accubond but I going to try some 162 gr SST and see if I get as good of groups with them