John Barsness did a write up on just this a while back. I think he said that generally speaking, 2800 to maybe 2850 was top end for 140s in a 22" bbl. @2700 for 150s, and 2600 for 160s. That's off memory, and I could be off.
My father used to run 140 Partitions in my brother's Ruger M77 7x57, at 3000fps. I can't recall the exact powder charge, but want to say 48 or 49 grains of H4350. I know it made a crunching sound when he seated the bullet.
He said over 2900 was easily doable for a 140 like the Hornady Interlock 139 and 2850 or so for something like a Partition. With 49 or 50 grains of H4350 I can get 3000fps. I usually shoot 48 and just use the same charge with a 139 grain Hornady or a 154. With the 154, I'm getting over 2800 with that load.
