BT, Hornady IMO are one of the better factory ammo. I have also had good results from Federal Premium 130 Gr BT's out of my 270. I have been playing with the SST in my 7 mag, I have to tell you they are tack drivers. My groups are better with these bullets than any other factory or handload. However my field expericence is none with SST. I can vouch for other Hornady custom offerings and always pleased. I am like you and love BT's with excellent results. Looking into reveiws I found one non-favourable and 3 favourable with regards to the SST vs. Nosler BT.

I would say try them and maybe a box of Federal go with which ever one shoots the best. Being I have used the Federal BT's and other Hornady offerings, I would feel confident whichever shoots the best.

You can check out the real life review in Guns and Ammo website, one was on hogs.