5.56: 69gr Sierra Match-King with Varget

Working up a load in 5.56 using 69gr Sierra Match-King and Varget with Starline 5.56 brass (which causes some case fill limits due to having smaller case capacity than typical 5.56 brass like Lake City. Also discover issues with my optic that could be impacting accuracy on top of POI shift depending on what magnification its set at.