I shoot A-Max 140s at 2875 fps and it's a tack driver.
Currently working with the same barrel you have but in 22". What powder are you loading to get that velocity?

long range steel target shooting
Looking at the equipment list for the Steel Safari 2013 the majority caliber choice was the 260 followed by the Creedmoor. Also Savage actions were used by several competitors. Not a 30 caliber in the bunch....go figure!