Bob, those came out of a Lyman 358315 mould. They have too much taper on the nose for my taste, but since I only paid $5 for the double cavity blocks I can't complain.
MSP, .357 dies work fine. My rifle, anyway, still shoots .38 special and .357 Mags with good accuracy. I dunno how it does it, but it does. I've shot a good many sub inch 50 yard groups with .38 wadcutters.