I'm not sure about using H1000 with this cartridge, but I have been super impressed with the 7mm-08 cartridge. We have yet to fill an elk tag with it, but it sure does work well on deer. I really appreciate the ease of finding reloading components, its light recoil, and great accuracy. If I ever I need to retire my .270 win, I'd be buying a 7mm-08 for myself.