If I load my 30-06 to 52,000 CUP similar to a 270 Win what kind of velocity increase am I going to see with 150 and 165 grain bullets? I realize that each rifle is different and that I'll have to work up loads gradually. I'm just looking for a ball park figure.

For a rough ballpark, figure 50 fps is about 2,000 PSI. An increase of 1 CUP is also an increase of about 1.5 PSI.

Depending upon the powder, you can expect 50-150fps increases over the standard CUP readings. Do a Google search on 30-06 reloading and you will find an interesting page with some loads and CUP listings. Kudude