Hodgdon warns not to reduce loads by more than 3% because of potentially poor ignition problems. They list (and it's their powder) 23.0 "starting" loads for 240 gr. JSP. Reduced by 3% that comes to 22.3 gr.
I found a web site that listed 19.3 gr. H-110 for 240 gr. bullets. I loaded 19.5, 20.5, and 21.5 . . . The 23.0 gr. load is blowing my groups apart with the lead bullet.
Anyone working in this load range with lead bullets?