Re: 7mm stw fans
Welcome to LRH nube!
I recently purchased a 7STW in the Accumark. I shoot the 160 TX using IMR7828, WW brass, Fed 215GM primers, max magazine length. 3350fps.
I just purchased the 140's to load in my 7Rem mag and to try in the STW.
This is my first experience using TX Barnes, I was impressed with the accuracy I was able to get right off the press. .277 at 200 yards for a 3 shot group!!. It did help that another individual had the same rifle and gave that load.
I've played with the 175 Sierra's using 8700 in the new brass going 3200 they shoot acceptable. I have not stretched any of these loads out as the farm I shoot at for distance is not available until after crops are off and the seasons hunting is over ususally after the 20th of Jan. Then I can get my 1000 yards.
It is a very nice cartridge. With the right powders and bullets you can get near the same performance as the 7RUM with alot less powder. Good luck w/your new rifle.