I just bought a srs a1 covert with the 16” 308win conversation kit. I have a delta p design muzzle adapter with a q cherry bomb suppressor mount on the front. Glass is a vortex razor gen2 3-18 in a ADM 20moa mount. (Pulled scope and mount off a different rifle that shot under .5moa) anyway those are the specs. I assembled the rifle as per desert techs instructions and my first shot was a light strike... not too promising. Rifle shot after that but I can’t get a group smaller than 3” at 100yds... using NORMA match 168gr factory ammo (same lot and shoots .41moa out of my McMillan tac-308). I’ve checked everything for looseness and it’s solid as a rock. I even took the barrel off and re installed again to no effect. I didn’t take the thread adapter off or the suppressor mount but I looked and there are no strikes.Cleaned the barrel after every 5 shots. In the end I used 40rds and had 3 light strikes with the worst grouping I’ve ever seen. Anyone got any advice?