I'm getting ready to work up a load for a 10" 357 Herrett barrel I picked up. Gonna try 180 grain bullets first. I see that even though it is in the burn range for this cartridge there is no load data for Lil' Gun in this cartridge. Wondering if anyone here has tried it and give me an idea of a starting point that I could work up from. I have plenty of this powder but no data. May have to buy some 1680 if I can't find a starting point. I've been meaning to get some 1680 anyway but would still like to try the Lil' Gun.