Has anyone began load dev on these??? Not a lot of published data and no data for 200Gr( not that there is a big difference between 198 and 210).
I was surfing the Net to see if anyone cracked open a Winchester Super Suppressed 300 Blackout 200 Grain Open Tip Range and sussed out what the factory charge is, but no joy. H110, CFEblk, etc. seems to be default powders but they are kind of optimized for supers and say they work for subs(but we all know how that usually goes). Any thoughts?????