In various loading manuals, I have seen different O.A.L of .357 mag cartriges, and in others too. Also, some very different max. loads. An old speer man. gives 17.5 grains of H110 for a 180 gr. bullet, Lyman gives 15.0.
O.A.Ls for a 180 gr. bullet varied from 1.550 to 1.595.
Now, what? any help is apreciated. I intend to load 180s cast truncated cone that, in my handloads, measure 1.55" o.a.l., and 15 gr. of H110. thanks in advance.