I have had the 310 Lee for a while, and it is my bullet of choice for hunting. I just got the 200 Lee this year, to mimic some HSM's I bought in bulk. It works very, very well at modest speed for plinking, and mimics 44-40 ballistics, which worked fine for deer in a rifle 140 years ago. I see no reason why the 200 couldn't be loaded up to 44-40 rifle speed in a handgun, say to 1200 or 1250. My sedate plinking load produces 1250 in 1894 Marlin and about 1100 in handgun. I'd have no qualms with using the mild loaded 200 on game if it was what I had in gun, but the 310 is just about ideal for game. Big flat-nosed bullets don't need speed to kill, and work well at mild velocity. I had to fab another taller front sight though, otherwise, I had to aim 5 ft low at 100 when the muzzle velocity was about 1000.
