Alliant Steel loads require Fed 209A Magnum primers. A load of 1.5oz is very heavy for 2 3/4" and the wad selection and spacers are critical for proper shot set back on ignition to hold column together for best density and accuracy.
Alliant has all sorts of loads for Steel on line. I would use their data over Lyman and they do list Hevy-Shot in their load data.
The other place that will have all sorts of load data is Ballistic Products for TSS ETC.
Alliant has all sorts of loads for Steel on line. I would use their data over Lyman and they do list Hevy-Shot in their load data.
Alliant Powder - Reloader's Guide
www.alliantpowder.com
The other place that will have all sorts of load data is Ballistic Products for TSS ETC.