Bullets do the lifting, not the cartridges. Berger 140 vld with an impact velocity above 2000 fps is a sure killer on critters. Last fall watched one at around 2100 fps kill a raghorn bull very dead at 400 yards. Busted shoulder and found under hide on opposite side.Just curious have you had any experience with the cartridge on Elk? I've looked and read every story I can on it just looking for more input.
Recovered bullet.
So a 6.5 PRC should do a comfortable 2900 fps. At 9000 feet in the elk woods, it is carrying 2000 fps to 900 yards. It'll penetrate and expand nicely. Seen the 140 vld kill many deer, elk, black bear, mtn goat, elk, antelope over the years.