Does anyone shoot this bullet sub sonic or super? I've ordered the mold along with some gas checks and was wondering if it was to light to cycle the action with around 1000 fps. Next question, Finding load data for the 300 isn't published in the manuals I have, so finding a trusted load seems very difficult. I have 2400,H110,H4198, IMR4198,imr4227 powders. I also have some Hornady 208 gr. A max bullets thats better suited for subsonic but again finding trusted load data is hard to find.