Garrett loads hard-lead bullets to very high velocities, and they are the real deal. Any of the animals you mention is going to take a dirt dive when hit by one; just make sure to keep your shots within 150 yards, because the .45/70 is a short-range cartridge.
Outdoor Skills – Hunting Q&A
I own a Marlin .45/70 Guide Gun and would like to hunt moose, elk, big black bear, and wild boar with the .45/70 ammo loaded by Garrett Cartridges. Garrett makes some pretty bold claims for their ammo. Do you think it will do the job?