First thing that you are going to need is a good heavy Reloading press. A rockchucker or a hydraulic press. I use a Corbin phase II press. 
Second you will need to decide what brass to use. The choices .357 Mag brass, .357 Max brass, or 5.6 X 50 R mag brass. The advantages to the mag brass less trimming low cost. The disadvantages thinner brass and less life for your cartridge. You can get nickle plated .357 brass stay away it tends to be more brittle and in general a pain. The advantages to the max brass a a slightly heavier case with better case life. The disadvantages more trimming a little harder to form. The advantages to the 5.6 X 50 R brass is the RWS brass is just superior brass, it is thicker and easier to form and does not require annealing in most cases they also give far better case life. The down side more time spent trimming and they are hideously expensive (about $2 a case). So everything that follows will depend of your first choice.
If you choose Mag or Max brass you will have to anneal the cases. This step is critical, with short cases it is easy to anneal way too far down the case and into the web. This allows case stretching as you shoot. This eventually leads to the case thinning just ahead of the web and cracks starting to appear in your case and its time to throw them away. Even worse case separation, where you open your action and just the head of the case pops out. Now you have lost a relay or two while you fart around trying to get the rest of the shell out and not ruin your chamber. So set up a pan with the coldest water you can. Make the water height about a 1/4" below your cases. Now run the torch lightly over the case mouth. Remember less is more you can always do it again but once they are too soft there is nothing that you can do to re-harden them. If they start to glow they will be too soft. For the 5.6 RWS brass no annealing is necessary.

I must be lucky. Used RP 357 mag cases. Didnt have to anneal the cases. Used some bullet lube which works better for me. Smeared the cases and pushed them into my forming die. Knocked them out with a brass rod.   Did drill all the flash holes to the same size and deburred at the inside. That's all I did.  Been using the brass for many years with no problems and have not resized them once. 

        Joe.   

I started with new brass. Nice soft stuff. 

I usually have two hundred preloaded cases. Use a thin plastic foam wad on the powder. Have never single loaded a case when shooting. Everyone was using preloaded cases around me......... monkey see monkey do. 
I use the .32 MS in only one match a year now days.  So boring, shoots so perfect all the time. No problems to figure out, gets boring putting bullet after bullet in the twenty five ring. Have a lot more fun using traditional rifles and shooting standing. 

              Joe. 

I started with ten grains AA #9. Now I use ten grains H108. That's all I've ever used. 

             Joe.

Quote:


Bill, Won so much H108 with my .32MS short, will not live long enough to use it all. Now what?

       Joe. 

My problem is, I cant find H108, and since powder is in short supply here in Ruin Va, I thought I would start with a lite load using UniQ, any thoughts??  maybe 4227??

Hey!  He's independently wealthy and even at $100 a set of 4 (1" groups) that's not enough motivation.  AND we all know how timid he is - let him (by not posting every day his 250's) have the satisfaction of the rest of us enjoy jumping up and down when (if) we get a 250 (even if he does it day in and day out)