The definitive test to check if distance to the forcing cone affects accuracy: .357 vs .38 Special vs .38 Long Colt vs .38 Short Colt (last two are .38 SPL brass trimmed) : r/reloading
32 Long Colt - Roberson Cartridge Company
Winchester Super-X Ammo 32 Short Colt 80 Grain Lead Round Nose Case of