59 gr of RL-19, 140 NBT or 140 Barnes TSX, 3020 FPS.
Always liked that rig.
For conversation, 57.3 gr. of RL-19 w/ 140 Accubonds averaged 2,954 FPS in my 22" M70 and 60.5 of RL-19 w/ 129 LRX averaged 3,084. I like that powder in my 270, but it didn't show me much speedwise in my 260.
Never had a 260, so can't comment on it.
'19 & '22 are both really good in the 270, 280 & '06.
When I go to 150 or heavier in either the 270 or 280, then I prefer RL-22.
