I have been fooling around with a modestly powered, plain base round for short range hunting. The latest iteration is something I am pretty happy with: a 207 grain MP version of the 35-200 bullet, plain based, powder coated, sized to .357 and seated to 2.10" OAL over 7.0 grains of Unique. At our 25 to 50 yard distance we are getting very small groups and the chrono today gave average velocity of 1150 FPS, ES of 24 and SD of 10. My buddy is thinking about a suppressor and maybe a subsonic load. My guess is that I need a heavier mold to get subsonic (ideally 1050 FPS or so), but I am leery of getting too heavy and not being able to stabilize the bullet with a typical 350 barrel twist. Our quarry is a swimming beaver, so this is trying to hit a moving dollar bill out to 50 yards in the dark. Small groups are really important. Anyone fooled with a subsonic load in this cartridge? Can you recommend a mold?