Hi Guys, Wanted to get your thoughts: using Hornady Superformance SST, Custom SST, and Superformance GMX 150gr ammo, I can get about .5" MOA at 100 yds, but when shoot at 200/200+ I am all over the place. Shooting AR308 with 24" Ranier SS UltraMatch 1:10, 6 groove. My thought is that I probably need to be shooting 168gr+ and will try that next, but wanted to get your thoughts? Thanks, Mark