Just chronograph some 38 special 125gr H&M plated FP vs 125gr Sierra JHP in same gun, powder, primers, case prep etc...only difference was in the type of bullet. Plated bullet 780fps vs JHP bullet 886fps both at 4.6grs bulleye. And at 4.8grs bullseye plated ran 825fps vs JHP at 899fps. Any...