Some 25x6.8 loads with Leverevolution in an 18" BHW barrel. Federal cases with Wolf primers (NCSRM). Rounds are loaded 1.846" length to ogive with a cutout magazine to allow the length.

100NBT (~2.34" oal)
30gr 2730 fps
30.5gr 2769 fps
31gr 2789 fps 31.5gr
2864 fps (slightly compressed)
32gr 2894 fps (max case fill with this bullet)

100 Hornady Interlock (~2.30" oal)
30gr 2734 fps
30.5gr 2780 fps
31gr 2821 fps
31.5gr 2871 fps (max)
32gr 2966 fps (over max)

100 Speer SP (~2.25" oal)
30gr 2754 fps
30.5gr 2842 fps
31gr 2824 fps
31.5gr 2869 fps
32gr 2898 fps

90 Sierra GK (~2.22" oal)
31gr 2813 fps
31.5gr 2866 fps
32gr 2946 fps
32.5gr 2973 fps