Again, any of their .30-06 will be ballistically compatible with your 7600, except I would avoid any that has corrosive primers as the gas mechanism of the 7600 doesn't strip down as easily for cleaning as the Garand and M14 gas systems do. Fortunately for you, the corrosive primed ammo is all listed as "out of stock" so that choice isn't available anyway. No chance of confusion there. Right now of the three they do have in stock, HXP is the most economical. Hornady 150 grain load is next in economy. The Hornady 168 grain A-max load has the least economy, but they will all work in the gun. Their accuracy will tend to correspond with the price. The more you pay, the more accuracy potential in the load.
In your shoes, I would buy the HXP and think about the more expensive ones only if the HXP proved unsatisfactory.