u/ToraNoOkami

Following up yesterday’s post asking for advice… Just finished an evening session getting these prepped for a weekend date with my chronograph.

New starline brass, white river large rifle primers, powder coated 340gn hard cast slugs, accurate no. 2 powder charges in half grain increments from 11 to 13 gn.

I need help—a starting place— working up a subsonic 45-70 load to run out of an 18.5” barrel. On hand I have Accurate no.2 and 2015 as well as IMR 3031 and Hodgdon BL-C. The bullets I have are 340 gn powder coated. Where would you start?