Old thread, but I do have information. The .32-20 is a rifle caliber, and handloaders that try to reload it like a pistol cartridge do it a disservice. Now, I don't mean chesty, adventuresome magnum handloads. Instead, the .32-20 handloader should treat his cases like rifle cases.
Slight chamfer on each case each time.
Hand start each bullet, each time.
Just enough case lube for the case to be sticky. Don't care if you have carbide dies.
Neck size only.
A few grains of some decent pistol powder and the good old .32-20 is actually a cheaper caliber to shoot than .38 Special for the handloader that casts his own bullets. There's a good reason the caliber was a staple in Southern Appalachia for an entire generation;
"Them .32-20s are hard shootin' guns. They won't let the police have 'em, 'cause they'll shoot right through a man."
For long action guns in this reigon, .32-20s are somewhat more plentiful than 38s, but most of them are in poor condition; I have posted my nickeled Fourth Change on another thread, and it's one of the nicer unrefinished originals I have seen in this area. Black powder shells and corrosive priming did their work on "Papaw's old gun" and the HV stuff has bulged cylinders and cracked forcing cones on many a .32-20, and even sprung cranes on Police Positives.