Thought I would contribute a little here in case anyone is curious. I wanted to load some really light loads for my boy to shoot out of my BH 45acp cylinder. I had a bottle of Red Dot sitting there and thought why not.
I looked for some loads, but I really wanted a low load. Most of my searching came up with 4 - 4.5 grains. I have a powder thrower, but I wanted to see what my lee scoops threw also. I came up with .5 cc, which was 3.5 grains.
I loaded a lee 230 grain TC boolit, regular lube groove. Tumbled with LLA/JPW, do not know the portions off hand, but do plan on making some recluse lube and trying again.
So the OAL was 1.18", I believe. Seeing how there is no data, I had settled on something between 1.17" and 1.20". 1.18" is where I ended up.
Over the chrony at 5' I was getting a consistent 684 fps. I did not do much more testing than that because these are really and truly just for plinking. My 9 year old boy handled them just fine hitting 3 balloons with 7 shots at 10 yards. Not too bad for a first time kid shooting a 45!
Crazy when the most expensive part of reloading is the primer. Fun shooting.