In a Barrett Fieldcraft. 49 grs R26 and Fed 210. 2800 fps. Went up to 50 grains and got 2875 or so but groups increased.
A 147 at 2800 will fly a long, long way.
R22, 47 grs, got me 2725 fps and similar accuracy. (Sub MOA) Good Luck and keep us posted.