Hornady 240 XTP, 23.5 grains H110, CCI 350 in Starline brass works well in mine. Have also seen them shoot well with 180 of some kind over H110, don’t recall what bullet. Can’t hurt to try a .44 Special with a jacketed bullet.
Stay away from cast bullets, they are said to be hazardous to the health of the gas port. Can’t confirm that but why risk it? It’s not a gun intended for nor especially useful for high volume shooting.
