I have a Lee mould for a 310 grain gas checked WNFP at .430" for use in my .44 magnum. However, I would like to give it a try in my dedicated .44 special onlty (S&W 21-4) revolver as well.
I can not find any published data for this heavy of a bullet in .44 Special though. Is there any out there?
Can I reduce .44 mag data by some percentage as a starting point? And if so, what percentage 20, 25, 40?
I can not find any published data for this heavy of a bullet in .44 Special though. Is there any out there?
Can I reduce .44 mag data by some percentage as a starting point? And if so, what percentage 20, 25, 40?