From Sierra’s description, it sounds like a varmint bullet, but the lighter varmint bullets in Grendel demonstrate controlled expansion in medium game because they aren’t hitting as fast, unless you spit them out from a 22”-28” barrel at 2900-3220fps.
I know 90gr TNT is one of the preferred loads for hog hunting for guys that have used it for years. Everyone told them it would blow up and not penetrate, so they tried it and saw DRT after DRT with fast ToF, flat trajectory, so they kept using it.
I shot the 90gr TNT through a brake disc recently and it fragmented a lot, but also perforated the disc. That was from my 12” Grendel.
If you want a premium bullet that goes really fast, you can try the Hammer Hunter HT 80gr. Those do:
3150fps from a 24” barrel
3060fps from 20"
3010fps from 18"
2950fps from 16"
2890fps from 14.5"
2810fps from 12.5"
2700fps from 10.5"
90gr TNT Federal box ammo does 2700fps from my 12” suppressed.
I wanted to buy some factory federal with those 90s but I'm sure they don't make it anymore. I can buy the bullet and load it but I've already tried many different bullets, brass, charge weights, etc and my grendels can't seem to do better than about 1 moa so I'm kinda frustrated trying to load for them already lol. I just wanna buy factory ammo and have it haha.