I shoot 240 gr hard cast and use AA#9. The manual lists the range as 18.1-20.2 gr. At the same bullet weight, the HDY XTP range is 18.5-20.5 gr, slightly higher than lead. There is no 300 gr hard cast load listed, as others have noted, but the XTP range is 14.8-16.5 gr. So 17 gr seems like a...