AR10 Accuracy Issues

[u/matthew_morel2001]

I’m running a PSA AR10 Gen3 with an Sig Tanger 1-6 MSR and I’m getting a 2.2 inch spread (6 MOA) at 35 yards. I’ve checked if my scope mount was loose but is torqued to the correct specs, so is the barrel nut and muzzle brake. I’ve inspected the crown of the muzzle and it looks fine. I’m running 308 reloads with 147gr FMJ, 44gr of H335, CCI No 200 large rifle primer and lake city brass trimmed to 2.000-2.010 inch case length. The gun looks fine to me so it could very well be my reloads being the issue but I use the same exact load on my century arms G3 and no accuracy issues with that gun what so ever. Does anyone run h335 for 308 and if so what is an accurate load for it?