Bought a jug of CSB 1M from Hi Tech. I am looking for a 810-830 fps load for LY 452374 from wheel weights/ range scrap.
The data HI Tech provided shows a load for Berrys plated 230 gr at 5.4 grains.
Should I just use the published data or reduce it .2-.3gr to offset for the plated bullets? I know fmj velocity equivalent loads need more powder that lead, but I'm not sure what the relationship is for the plated bullets.