I've had good results with 27.2 gr of Varget behind a 52 gr Berger. CCI BR primer, LC cases. Chronos 3150 fps. This is in an AR with Shilen 20 in, 1:12 bbl. Be sure to work up to this compressed load. Groups 5 shots in less than 0.5 in. (About as good as I can shoot).
Pat
