It is a fine option, and it makes heavier for caliber bullets more readily available in factory ammo than other options like 7RM. Do you reload? Are you relegated to factory ammo? I assume factory ammo. There are plenty of good options that would work well on Elk. I would say in an and average sporting goods store you will find as many 7PRC options as you will most other old school cartridges.
Well that is a cool old school cartridge! Ultimately the 7PRC would be great for you’re looking for. Obviously much better external ballistics and more than enough energy for all western game.I mostly reload. My current elk cartridge is the .350 Remington Magnum.