Um, Skeet,  the  Hi Power is single action. . .   at  least  the classic design is.
   I   have  one, it was  the first auto pistol I ever  bought. Mine is an old WW2  model, Wehrmacht proof  marks, that had seen hard  times. The  bore was  pitted, the gun obviously  had  been reblued.  I  got it at a reasonable  price, dumped the barrel and  put a  Bar  Sto  barrel in it. Changed  the sights  for some  you  can see.  

    Now  it  shoots  well.
   I  confess I  don't  use  it  much. I  prefer single action  autos,  but, I  kind  of  don't  like the  round grip  a  pistol  has  when the grip is wide enough  for a double stack  magazine.  Just  personal preference, I  suppose.
   My 1911  gets shot a  lot  more than  my  Hi Power.