Looks like Gnoahhh moonlights for Barnes. Just heard back from them this am. Said they were working on "official" load development to post on their web site. Recommended to use the data from(1)-A 170 gr jacketed reduced by 2.5 grs and work up--OR-- (2)-Find a 190 gr jacketed recipe in a loading manual and start at their starting load and work up.
