The options were the 220 gr Hornady and the 200 gr Sierra.
Both are extremely hard to find.
Luckily I acquired enough of each plus brass when I came across it over the years, so I am good for my needs at this time.
I have primarily used IMR 4198 with the Hornady's to date. Need to work up a load with the Sierra's now.
On the plus side, HSM is making 375 Win ammunition loaded with the 200 gr Sierra bullet. Picked up a few boxes last year, but have not tried them in my rifles yet. Reasonably priced (but still not cheap) compared to the run of Winchester ammo that was produced last year.