Here's a load I've used for the past 20 years using 30 Cal. 165 RCBS Silhouette GC......25gr. H322 and 24gr Reloader 7 both using standard primers.
Both were easy 40's with rams hitting the deck hard!
As for the 200gr.......way too much punishment going the 40!
To be honest.....both my Merrill and TC in the 30 Herrett was my most used Cals in IHMSA/NRA Production/Standing classes.
WT
PS:RPM listing for the 30 Merrill @!200gr Jacketed was Win 748 30.0-32.0 grains....Good luck!