I just installed my 32 ACP
1st off let me say that I also tried the 32 S&W long route but ended up with a LOT of split cases.. They are too small in diameter to work well.... Certainly NOT safe IMHO... It would make more sense to reload the 7.62 Nagant rounds using a 32-20 die. There are great instructions on the web at the following makarov sight.
http://www.makarov.com/nagant/m1895.htm
To the point though. I just got my 32acp cylinder from J&G noting right off that it would not index well on 4 of 7 cylinders. It seems the cylinder was not rotating quite enough and needed a tweak to set the pawl to turn next round up so I started by stoning the back center of the cylinder with a diamond hone to allow the pawl to drop in a touch earlier. This helped on all but one. That one was binding just a bit before going into station. I realized the bind was the cylinder stop at the bottom of the frame. Again I stoned the edge of the cylinder to remove some machine burrs on the index points and it now works very well. It sticks occasionally at that same cylinder but I feel a bit of working in will take care of the binding. It's the same spot every time but now only occurs once in awhile.
If while pulling the hammer, I release it slightly then pull fully back it will set properly indicating to me it's just a touch tight still. But rather than remove too much I will try awhile to allow it to "wear in".
(ALL changes were made to the cylinder NOT the pistol... You do not want to alter anything in the frame as there is no going back if you do...)
Dry firing provides better results than slowly allowing action to rotate by hand & shooting even better..
I also ordered the LEE 32-20 reloading dies and plan to shoot reloaded 32-20 brass in the original cylinder mostly anyway but I also reload 32acp & felt it worth the effort to try the cylinder which in my opinion is a viable effort.
I do not suggest using S&W 32 long. They do NOT fit properly. The split cases are a large bright RED FLAG..!...I have heard of wrapping tape around them with better results, & that's better than nothing I suppose, so if you must shoot them try that.. But read up on the websites for more on this...
Anyway, In summary, The 32 acp cylinder needs only minor stoning & smoothing to work fairly well but I think reloading 32-20 cases per the results on above website is a better alternative to cheap & fun shooting. The website offers load data for the 32acp brass, 32-20 brass & even a snakeshot load so is worth a look in any case.
Hope this provides answers you need, "DOC" Jim R