Since the .32 long is something of a passion for me, I thought I might pop in and say hi in this thread.
I currently shoot about a half a dozen .32's of various flavors, from 3" I-frames, to a custom made bolt gun. Two things they all seem to have in common; They're accurate, and more fun for the money than just about anything else around, assuming you cast and reload.
I have almost a dozen molds for the .32's and burn through a couple of pounds of powder per year with the little guys. (At 2-3 grains per shot, that's saying something!)
In a long gun, I've found the .32 long to be just the thing for small game. It's role in a handgun can be similar, but I can make head-shots on squirrels at 65 yard with a scoped rifle, with a pistol, the quarry needs to be a fair bit closer.
I like the .32 long as a trail gun very much, and I've got a 4" taurus stainless revolver in .32 H&R (that has never fired a magnum shell since I've owned it) that finds itself accompanying me regularly when I take to the field. I don't encounter anything very dangerous, aside from snakes, around these parts, and I carry the little gun more for the targets of opportunity that present themselves than anything else. I can say that no soda can is safe inside of 25 yards, well at least not by the second or third shot, anyways.
I have a 6" barreled K-32 clone that loves wadcutter ammo more than a fat kid loves twinkies, but the rest of the guns I shoot seem to prefer a SWC or round-flat-nose profile.
A fun load is a .313-.315 round ball over a case about 90% full of trailboss. They shoot low from the sights of the pistols, but not too bad from the long guns. Once you learn to hold over, they're fun and economical for plinking, Kids love 'em!
I've been experimenting with the lyman 311033 lately, It's a 110 grain hollow point bullet designed for the .32-20, the solid point version is the 3118 or 311008, at approximately 120 grains. I use a small load of red-dot to push the bullet to about 750 FPS from a 4" barrel. I have no delusions that it would expand very well at that speed, even from a very soft alloy, but I also don't think it needs to expand for small game or soup cans.
As far as wadcutters go, I've experimented with the ideal 313492 for some time. It's a type 3 wadcutter, meaning that it's intended to be seated the same length as a SWC bullet, rather than deeply into the case. The only issue encountered with the load so far, is that some guns have throats too small for the full diameter .3135 nose section of the bullet as it drops from the mold(s). .313 is what I generally size to, (most of my guns like this size pretty well, so I've standardized) and it takes a little finagling to get the "nose" section to size down further, without disturbing the .313 diameter of the main body, but that's another story.. The guns they fit in though, seem to like them okay. I also have the bullets "SWC" brother mold, that is, the 313445.
The 313445 is essentially the same bullet as the 313492, but instead of a button nose, it has a little truncated cone. Some people call this a semi wadcutter, but it certainly isn't very close to what ole' Elmer Kieth designed. I think of it more as a modified wadcutter. I understand that it shoots better at distance than does the 313492, but I haven't experimented enough to say for myself with any conviction.
Lee makes a mold that is almost just like the 313445, except that it's a tumble lube design. I think they call it a "314 90 gr SWC" or something along those lines. I've shot it at 50 yards and 100, and find that it more than doubles it's deviation at the further distance, giving 3/4" from the rifle at 50yds and 2.5" at 100yds.
Lee used to make an 85 grain double ended TL wadcutter mold. I have one of the 2 cavity versions, but it's pretty well worn, and I've had my eyes out for a 6 cavity version for some time. Inside 25 yards this is THE bullet for accuracy from my K-32 clone. I haven't shot this bullet for groups past 25 yards, so I don't know how it would fare. I personally wouldn't have high hopes though, wadcutters don't like to keep stable, and double ended wadcutters especially seem susceptible to destabilization at range.
I haven't used the RCBS or Saeco WC molds, as they haven't presented themselves available at a bargain price while I was looking. I feel pretty well covered in the WC department, so I likely wont go seeking either of those. But who know what might fall in my lap at the next gun show?
The bullet that I shoot the most is the lyman 313631 SWC. This is a gas-check bullet, but it shoots just about as well for me at low pressures without the gas check. Every gun I've shot this bullet in seems to like it. I load everything I shoot in .32 long brass, and to .32 long pressures, so I don't generally use a gas-check, but when I do, I find that my accuracy improves slightly past 25 yards. From the rifles (I have 2 but only shoot one regularly, the other is still "in process") That means going from a 5/8" group at 50 yards, to about 1/2". With the handguns, I simply can't shoot that well, so I can't tell the difference on target between loads with the GC, and loads without. I like this mold so much I have 2 of them. I'm thinking of converting one to plain base, but haven't made the plunge yet.
I haven't found any round nose mold to shoot better than any other. The one thing I will say is that with the light loads that I like, the 95-100 grain versions seem to shoot closer to the sights on the fixed sight guns than do the lighter versions intended for the .32 ACP. With adjustable sights, this is a moot point, but worth noting, as so many of the older S&W I-frame guns have fixed sights.
I have other .32 molds as well, but they generally fall beyond the scope of this thread, as they're either custom made molds that aren't generally available either new or used, or they were made so long ago that they never show up, or I haven't wrung them out enough to even give an opinion.
I plan to continue to shoot the .32's I have, and no doubt I'll acquire more as the opportunity arises. I'm certain more .32 molds are in my future as well, along with further experimentation with what I already have.
And as always, what I've written above are my experiences, and my opinions, and they're worth about what they cost you. Any load data given has proven safe in my guns, but should be worked up to in anything else.