I have a 7mm STW, and am looking for any recommendations anyone has on reloading for this caliber. I am currently using the Hornady SST bullet, 139 grain, and having decent success, with my best groups being around .8 inch. Any information would be greatly appreciated.

Hi murftj, welcome to THE forum.

My experience is somewhat limited on the 7STW but really like the results I am getting with 7828 powder with the same bullet you are using. According to a few sources 74 grains is starting load with magnum primers and 80 is max. The velocity with a 26 inch barrel is crowding the 3600 fps mark with the max load, so they say. My number 1 shoots them into less than one inch at 77 grains with a Fed 215, fast as I need it to go.

I am loading 7828 behind 140 gr ballistic tips and accuracy with my custom rifles has been averaging 1/2".Velocity ranges from 3450 to 3520fps with my two rifles.

H-1000 From 70.1 grains to 85.5 grains
Federal 215 Primer

I,ve had the best luck with RL-22 79.5 grains 140 B-TIP FED 215 Primers approx.1/2 " groups the norm.Speed around 3450 fps. i've tryed H-1000 with excellent accuracy but 200 fps slower.Just got some RL-25 going to shoot and chrony this week end.

stubblejumper what is your charge weights for the two rifles?

With a 140 gr. BT and 80gr. of RL-22 my Mod.700 SF Sendero aves. 3490' on a 75 deg. day. It will shoot groups around .75" when I'm up to it.

Outlawsix-One rifle uses 78gr and the other 80 gr.

Thanks.