I believe the ".38-44" listed for the Bisley is the old .38-44 S&W target load, not the 1930's .38-44, which is nothing but a hot loaded .38 Special. The .38-44 S&W round was the same case diameter as the .38 S&W but with a case length of 1.470", longer than the .357 Magnum.
Jim
Jim