The 32 S&W Long is pretty easy to load and is certainly frugal in its use of lead and powder. In checking my loading notes for a 4" Model 32 S&W, I found the following loads that performed well.

Bullet: 98 grain Speer HBWC
Primer: Rem 1 1/2
Powder: 1.6 grains Bullseye
Velocity: 762 fps, SD 10, accuracy was 2" at 50 feet for 18 shots

Same as above, but with 1.8 grains of Bullseye powder:

Velocity: 840 fps
SD: 12
Accuracy: 2 1/2" at 50 feet for 12 shots (hand held from a rest)

For a heavier field load, I like the following:

Bullet: 115 grain FPPB
Case: R-P with a heavy crimp
Primer: Rem 1 1/2
Powder: 3.4 grains of Unique
COAL: 1.205"
Velocity: 980 fps
SD: 16
Accuracy: 2 1/2" at 50 feet for 12 shots (hand held from a rest)

I'd be careful of using the field load in an old break top revolver. I'ts been very useful in the J frame. Cases just fall out of the chamber without needing to use the ejector in my particular pistol, so my guess is that it's of fairly low pressure, although the velocity would argue against that.

I hope this is of some help. I bought my J Frame for my son when he was young as it's small enough for a young boy to shoot and not too loud and the recoil is very light, yet it's pretty deadly on jackrabbits and ground squirrels.

I've never loaded jacketed bullets for it as it seems to really like cast or swaged lead.