Cherokee1;
I have a 625-6 with 5" barrel and a 625-8 (JM Special) with a 4" barrel. The JM is my favorite revolver and I have several thousand rounds through mine. It has never been shot with anything but home cast bullets. A .452" cast bullet from WW's+2% tin will regularly shoot under 1" at 25 yards.
My "standard" target bullet is a Mihec mould for the H&G #68 cast bullet (200 gr SWC). My speed loader bullet is the Lee 230 gr Truncated Cone with normal lube groove. It loads slick as s*** and with its flat nose has much better terminal effect than hard ball.
My heavy bullet load is built around a NOE mould for the Lyman 454424 (250 gr Keith). That bullet can be driven, safely, to 900+ fps with 7.0 grs of Unique. It should work just fine for large whitetail deer and hogs at anything like reasonable ranges.
When using the heavy bullets I use a roll crimp to avoid bullet creep. I have a Lee die set for my Dillon 550B's. Lee, at slight extra cost, will supply the roll crimp insert together with the need spacer to enable roll crimping with the ACP die.
I use Auto Rim cases (Starline) when using the heavy bullet. ACP cases AND Auto Rim cases for the lighter bullets.
I have a number of very desirable Smith revolvers and the JM Special is very high on my list of BEST!
FWIW
Dale53