I ran Strelok for the 530s at 1100 fps MV . If I can get it down to a good solid repeatable 2.5" at 100 I'll have it made . It looks like it'll come together if I can get another 150 fps out of the H4831 which is a BP like full case at 35.5 gr in PPU brass . 1100 fps MV takes 1000ftlb out to 300 yd and has about flight from 150 as the FTX and 1/3 of the recoil .