This is an in-progress review: I received and loaded some for testing, will shoot, find an accurate load, then test on newsprint later.
So I received a test batch of Dino Devastator slugs.
2 varieties arrived.
One, a .7275" 656.4gr swaged jacketed slug w a big hollow point and some black plastic down at the bottom of the cavity.
The other was essentially the same (.7285" 669.5gr) but the cavity was filled w white plastic or something similar.