I worked up a mild load, about 3100fps, that was very accurate (1-1.25" 3 shot @100yd) for a weird Weatherby Mk V w/ a 22" barrel. I used H4831SC and Fed215 primers. Actually used the 150 TSX as this was pre-TTSX. I was close to the Barnes starting load. It has done the job for 3 California mule deer.
