I,m learning that every rifle is different. Just got a new Sako A7 last week in 270. The loads that were ok in the
Vanguard are to hot in the Sako. Have to back of loads 1 grain. Had no trouble with extraction or primers but
velocity was to high. Had a similar problem with 2 7MM mags, one rifles velocity was 150fps less than
the other with same load. RL26 seems to be the safest powder to use. Also RL23 is very accurate in both my rifles.
With 140gr Accubonds, best load was at 3080fps. you can get 3100fps or more but load gets very compressed.