I've been range testing quite a few .38 Special loads using the old 200-gr. Super Police bullet. These I've been casting soft with the Lee GB version of Lyman358430, a blunt round nose number.
A very accurate load, at least in my .357 Colt Trooper (original, not MkIII), has been 4.0 grs Herco. I don't doubt that load is safe in the .357, but I'm wondering if it's too hot for police revolvers. Two revolvers that I'd like to use this round with are a S&W M10-5 and the Colt Detective Special (1960 manufacture).
At one point Lyman was giving 4.1 grs Unique as tops with this bullet for the .38, Special then they backed down to 3.6 grs.
My hunch tells me the 4.0 grs Herco might be a touch hot in the two .38 Special revolvers mentioned above.
Your thoughts?