I would recomend a different powder other than HiSkor800x I have not seen a single load for .38 spcl published with it. That is from the Lee chart with my .38 spcl dies, The Lyman Pistol & Revolver 3rd edition, and from Hodgdon. Besides .5 cc sounds a bit much for a wad cutter. If using a Hollow Base WadCutter you are running a huge risk of blowing the skirt out on it.
Now 700x is listed for loading .38 spcl. Though if it meters like 800x I would not use it without a scale. I would recomend using something like Bull's Eye, or Titegroup. Both meter well, and work very well with loads for .38 spcl.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.