I've built 2 6x6.8 (6mmspc) on savage short actions. They just out right shoot small groups and drop deer, antelope, coyote like a hammer. My go to load is sierras 90g tgk, 90g nosler hbt bullets, sierras 85g jhp does as good. For coyote a nosler 55g varamgeddon flat out knocks em off their feet, that load is at 3576 fps. The 90g loads run at a tad over 3000fps, right in line with my 243, but using 10g less powder. 224 Valkyrie I built 2 of them on ar15 actions.
