December 15, 2007, 03:59 PM
I'm trying to punch in the necessary data in Sierra's ballistic program, and hit a snag. How could I find the BC for my Lyman #358627 cast bullets? They no longer make the mould, and do not have it listed anywhere I have looked. It is .358" diameter, has 2 crimp grooves, and weighs 218 grns lubed and checked. Any help would be appreciated.