Following with interest as I should have an 83 454 by weeks end. I purchased several hundred 45 cal JHCs from Sierra on a close out special years ago. As they do not recommend pushing this bullet over 1400 FPS, there is a pretty good amount of data for running loads similar to what you’re inquiring about. Don’t know yet but the load books for 454 coming today from Midway probably has all that data as well (for about $8 IIRC).
Happy shooting!
Last edited by Hawkeye_Reloader; 11/18/20.
