Best to start with 15 -18 grains and work up from there to get the most accurate load. I shoot 27 - 30 in most of mine, and that works well out to about 50 yards.
Dikar Spain-45 Cal black powder only
How much is a old black powder only 45 cal long barrel pistol worth?
Either FFFg black powder or Pyrodex P may be used.
50-250 USD
First, find a copy of the owner's manual for YOUR pistol. Second, use ONLY black powder, or a modern black powder substitute, such as Pyrodex. The ROUGH rule of thumb is one half the bore diameter in grains of powder. A .32 cal would use ABOUT 12-16 grains of powder.
Follow the recommendations in the owner's manual.
10-1000 USD depending on specifics.
10 USD or so
No published sn data.
No published sn data.
10-100 usd
40 grains of fffG