I have an FN Herstal pistol. I figure that it's a good social gun for up close and personal efforts. Fort Hood, remember?
But it's still somewhere in the general vicinity of the .22 Mag, the .17 HMr or a .22 Hornet, overall. For honest work I'd call it a varmint load. In a rifle, IMO, it would be fine for deer poachers. Ethical folks? Coyotes and smaller.
You're from BATFE? Come right in! I use all your fine products!