To clarify, my only knowledge of the Woodleigh hydro is in a case of factory loaded federal premium 375H&H ammo that I purchased. Nothing would die cleanly with it. The PHs were stunned that it wouldn’t pass through kudus and zebras.
I came home, shipped it all back to Federal, and they ran ballistics tests on it stating it was completely to published specs for velocity.
I cannot recommend it in a 375HH as I have a ten+ animal set of bad anecdotes from the case of ammo I purchased from Federal. The Federal premium 375HH swift a-frames performed just as advertised on those same hunts when I wanted to use a soft.