even though there are many old outdated loads for 357 magnum that use a full double ended wadcutter to achieve 10-1500 fps velocities in 6 or 8 inch TEST BARREL...
I have yet to find a load in 38 special that is supposed to do more then 8-850 fps in a 6 inch test barrel. underwood and buffalo bore are stating 1,000fps in 4 inch revolver barrels.
Something is not kosher at all. Your gun, your hand. But if you end up playing captain hook at the local community theater every year dont cry.
Full pressure 38 special red dot loads max at 16,000 and 820 fps.
I have experience with the BB/UA hard cast wadcutter loads in a SW638 1 7/8" bbl & SW686 4" bbl. They are standard pressure, not +P, though they feel like shooting the old FBI load in the hand (sporty in the J-frame, barely awake in the L-frame). I don't think there is anything too wonky going on.
The BB/UA load that makes me wonder is the 1250fps 158gr LSWC .38 Special. Not interested in shooting that out of my J-frame.