I was bored yesterday, so I warmed up the loading bench and started experimenting with "mouse fart" loads for my 1903a3. Powder was Unique, 4.6 grains (per a Lee .5 cc scoop) topped off with a 100 grain 32-20 pistol boolit, sized to .313. Brass was full length resized and the neck opened up with a Lyman M die to .311 with a gentle flare. Boolits were then seated and the neck closed just enough that it was straight....no crimp.
Now, most of us shoot cast because of the cost reduction and the accuracy challenge. So do I, but I was trying to cut everything down to the bare minimum, just for fun. And brother, these little loads are fun!
The report was above what I'd call a "mouse fart", more like a muffled .32 pistol and ear protection really isn't required. Recoil was non existent, in fact I think I'll have my 6 year old grand daughter shoot a few. Although I didn't set up a paper target, with the sights at 500 yards (or so) I could easily plink bits of rock at 100 yards..........and do it all day.
Try it!