Loaded up a few 158gr JHPs subsonic .357s and tried them out at Whistling Pines yesterday in "Thunper", my suppressed Contender SBR. Worked well, have no idea what velocity I'm getting since I want something about 950fps. Will have to wait for things to warm up before I can chrono outside.
...trying to find a use for my 12+ pounds of WW540...
O2