The S&W Model 30 is a .32 Hand Ejector made after 1957. They were chambered for the .32 S&W Long cartridge, but will function with the semi-rimmed .32 ACP, although extraction may be unreliable. Mine is a J-frame from the late 1960's.
Thanks. I have done same, but assumed we were talking a semi-auto and could not think od an automatic model 30 by anyone. I sold my S&W 39 snubby several years ago. It chambered 32 S&W Long (and everything else) with the Hornady Lead SWC;s that were .314" dia. as well as Lyman 3118 (32-20 bullet RNFP in .314)
I prefer to use a taper crimp. The old Lyman "All American" 7/8-14 dies has a roll crimp that seems to bulge cases super easily at the slightest imperfection in case length. So. I have been FL sizing Long, Short, & Auto brass with modern Lyman 32 ACP dies and adjusting for length on taper crimp. I picked up a New/Old Stock of Lyman 32 ACP dies and a 2-cavity 84 grain RN mold for $10 each from the new owners of an old gun store a couple of years ago.
In this weight area, I have 84 gr. RN, 115 gr. RNFP, 120 gr. RN and 120 gr. Spire Point. I have the Lyman 450 Lube/Size press with .308-, .309-, .311-, & .314-inch sizing dies. When needed I cast a large batch of the needed bullet then usually, I size about 500 to the size needed and top off boxes of the other diameters. This allows the same bullets to be used in 30 Lugar and Mauser, the little 32's, 32-20, M-1 Carbine, and 30-30/303 Savage/308/30-06 Plinking loads and 303 British/7.7 Jap/7.65 Arg/ 7.62x54/7.62x 39 Plinking loads. (I just happen to have dies for all those except 30 Lugar.) I used to use Lyman Alox Lube, but about 15 years switched to SPG lube on everything.
I also have the Lee 90 or so grain 32 SWC Tumble Lube mold, and really haven't found a cartridge/gun combo that like it! My velocities run faster than the 32 S&W Long target rounds.
In the Mid 90's I picked up two of the Davis Derringers in 32 ACP. I thought about rechambering them In 32 S&W Long, but never got around to it. I lust load 32 ACP brass with 32 S&W (short) data and lead bullets and use them in Cowboy Action side matches for "Belly Guns". 200 rounds sure seem like a lifetime supply! I find this to be far more accurate than any of my Top-Break 32's.
Ivan