I have a Daniel Defense 10.3" that is a real shooter. Barnes Tac tx 110 gr using h110 that shoots .5 groups at 100 yards. I've been waiting on my suppressor. Been working on sub loads. I've used h110, 1680 and 220 gr Sierra match king. Not impressed. I'm getting a sd of 30 fps but my groups are almost 2". I realize that it's sub loads so wind doubles the affect. Anyone have any suggestions? My bullet selection is limited in 30 above 168. I'm wanting a good bullet that will expand subsonic. Any help would be appreciated. Thanks