I'm always amazed at the volume of information available on the CBA Forum about my cast bullet and reloading interests. I'm an accumulator of old Colt revolvers in odd calibers and it is fun to explore reloading possibilities.
I enjoyed the discussion of "Cop Guns" and the .38 Special full charge wadcutter loads for that caliber. I have a ciop gun, a Smith & Wesson model 10-8. My favorite load is the Lyman 358156 gas check LSWC over 4.0gr of Unique. I do use wadcutters in my Colt Officers Model. The S&W was advertised as a police trade-in at a local gun shop at a very reasonable price. When I bought it I found it had been "neutered" i.e. had the single action notch filed off so it would only operate double action. I sent it back to Smith & Wesson and had them install a new hammer, a wide spur target version.
I recently acquired a Colt Police Positive target model in .32 Police - .32 S&W Long caliber. My only mold is the Lyman 3118, which drops bullets at 115gr with the range scrap I cast with. I wanted to use a lighter bullet and low powder charges because I had read about the possibility of splitting the forcing cone in these old Colts with heavy charges. I call this gun my Cap Gun due to its diminutive ammunition. It is only used for target shooting.
I bought commercial cast bullets as follows: 78gr round nose, 100 gr round nose and flat nose and 98gr DEWC's from Missouri Bullet Company. Powder charges are either 1.6gr of Bullseye or 2.5gr of Unique. So far I have not been able to get consistant accuracy with any of these loads. I don't have data for the 98gr wadcutters so I used the same 1.6gr of Byllseye as for the 100gr flat nose bullets. All are sized to .313" the same diameter as the cylinder throats.
I would appreciate any experience members have had with the 98gr wadcutter, and what powder might be more suitable than either bE or Unique. I have 700X but have not tried it. The Missouri bullets have a crimp groove, so I've been seating them with a roll crimp applied there - fairly deep in the case.