Hey Larry. I have a son that lives down that way in Jackson. I may try the 2400 also, it is so close to the Blue Dot and I use it in all my 44 , 444, and 357 loads. I do crimp but not hard, just enough to make sure the flare is taken off the case mouth. I size them to .500 because I have a Lyman 450 lube/sizer, I use the black moly lube from Midway. I do NOT use a gas check on the lee 440. I load to 2.100 OAL. This is the cleanest load with Blue Dot I think I have shot, there is zero sign of leading. I am using wheel weight metal that is dropped into a cooling barrel from the mold. I do have a .501 Lee sizer but it was actually a bit big, the 500 Lyman is just tight enough to let me force the lube into the grooves.
At first I could not find anything but hot handload data for handguns, and was extrapolating from 50/70 load data. There was one500 load that showed the Blue Dot load as producing 1195 fps with a 490 gr bullet from an 8 3/8 Smith barrel and showed a spread from 17 to 21 gr. I would love to know just what you come up with velocity wise. It shoots like a 20 ga skeet load as far as I can tell. I get 350 to the pound, and I figure that my cost per shot over time should be about 12 cents since I have my own lead and cast my own. Gotta love it!!