I haven't seen any to measure but I would imagine those 150-158 grain bullets for the 7mm-08 would start taking up some valuable cartridge space. To get those 10-18 grains would have to be in a bit of length and the 139-140 grain bullets are pretty much at the long end to compression loads. At least with the powders I use. Now if you don't hot rod your loads anyway, you may be able to get them in without compression or valuable space. Or you may use a smaller kernel type powder.

As far as the .308 vs the .30-06 argument, the .30-06 can and does outperform the .308 and the recoil is based on the rifles. Put the exact same bullet weight in rifles of identical weights and you would be hard pressed to perceive the difference. Rifle weight is a key factor in perceived recoil. Also stock fit and a few other factors. The size of the individual firing has little to no effect on recoil. Technique and form as well as rifle fit is all that really matters. Of course there are some exceptions to that like injuries as a couple have noted. Some are just highly sensitive to recoil no matter how well the rifle fits or how well they utilize proper form. Especially those that started out with a rifle well above their absorption ability to begin with. But even with all that, the difference between the .308 and the .30-06 is pretty much moot till you pass the 500 yard mark. Just like the .30-06 vs the .300WM. With comparable bullet weights and BC, there really isn't any difference until you start getting into ranges that your average hunter shouldn't be pulling the trigger at in the first place. From 500 yards and in, that deer or elk will be just as dead. With average hunters in mind, cartridge availability and price is the key factors to observe. And both the .308 and the .30-06 are pretty much available anywhere you look and the prices are pretty much the same. Factory ammo is beyond stupidly high so one must think seriously about reloading if one is serious about shooting without wanting to go broke feeding their passions.