P.O.D.
"And the Winchester and Western HVs are generally stamped ".32-20 WHV M/92", aren't they?"
My recollection is yes for Winchester and Western. Unfortunately the only .32-20 80 gr. High Velocity loads I have are old Rem-UMC, and they are head-stamped simply "Rem-UMC .32 W.C.F."
The attached picture shows several early .32-20/.32 WCF cartridges. The one on the right, the hollow-point, is the High Velocity 80 gr. O.P.E. load. This one is the only .32-20 factory load that is specific for the Winchester 1892 and later rifles that should not be used in revolvers. All the others can be used in anything.
The round on the left is a very early .32 WCF Black Powder loading, before the case became slightly bottle-necked. (The chambers were from the beginning, go figure!) I have another that isn't pictured, a 100 gr(?) FMJ flat-point with a tinned bullet. Bullet shape is just like the 100-120 grain jacketed soft-point but FMJ.
Interesting how others feel a .38 Spl. with possibly a 125 gr JSP at probably 750-800 FPS is adequate for self defense, but a .32-20 100-115 gr. at ca, 850-900 FPS is inferior!!!!! Silly, isn't it? The fact that any gun is far superior to no gun at all obviously escapes many people. Are there better cartridges? Sure. But this one isn't to be sneezed at either! At various times in all the years I was a working street officer I have carried .38 Spl, .32-20, .32 S&WL (Not factory loads), .32 ACP, .44 Spl, .41 Mag, and 9mmP, probably a couple more too. I never had the least concern with being under-gunned, just figured on shooting until the job was finished, just like you need to do with a .357 or even .44 Magnum!