just ran four fictional loads through the calculator. i figured 40 grains of powder for each, and an 8-pound rig all up. add a pound or so for a 7-pound rig.
.308, 150-grain bullet, 2,800 fps, 15 foot pounds of recoil
.308, 165-grain bullet, 2,700 fps, 16 foot pounds
7mm-08, 140-grain bullet, 2,800 fps, 13 foot pounds
7mm-08, 162-grain bullet, 2,700 fps, 16 foot pounds.