Banen –
Here’s a few comparisons showing recoil, bullet characteristics, load, load source, zero/MPBR (Maximum Point Blank Range) for 3” max rise and drop, and drop and energy data for 400 yards:
7mm-08
11.9fp recoil, Barnes 100g X, 3374fps, SD=.177, BC=.343, 47.0g W748 (Barnes #3) 274/321, -11.0”, 1197fpe @ 400
14.6fp recoil, Nosler 120g BT, 3180fps, SD=.213, BC=.417, 50.5g H414 (Nosler 5th) 265/311, -12.2”, 1333fpe @ 400
15.6fp recoil, Nosler 140g Partition, 2922fps, SD=.248, BC=.434, 49.0g RL19 (Nosler 5th)247/290, -16.5”, 1434fpe @ 400
16.5fp recoil, Nosler 150g Partition, 2862fps, SD=.266, BC=.456, 48.5g RL19 (Nosler 5th) 243/285, -17.4”, 1513fpe @ 400
17.0fp recoil, Nosler 160g Partition, 2780fps, SD=.283, BC=.475, 47.5g RL19 (Nosler 5th) 237/278, -18.9”, 1550fpe @ 400
17.0fp recoil, Nosler 175g Partition, 2612fps, SD=.310, BC=.519, 45.0g IMR4831 (Nosler 5th) 224/263, -22.6”, 1552fpe @ 400
.308 Win
13.8fp recoil, Barnes 110g X, 3378fps, SD=.166, BC=322, 49.0 H335 (Barnes #3) 272/318, -11.5”, 1253fpe @ 400
15.8fp recoil, Nosler 125g BT, 3214fps, SD=.188, BC=.366, 51.5g W748 (Nosler 5th) 264/310, -12.8”, 1410fpe @ 400
17.6fp recoil, Nosler150g Partition, 3001fps, SD=.226, BC=.387, 48.5g Varget (Nosler 5th) 250/293, -16.0”, 1508fpe @ 400
17.7fp recoil, Nosler 165g Partition, 2820fps, SD=.248, BC=.410, 46.0g Varget (Nosler 5th) 237/278, -19.3”, 1498fpe @ 400
18.5fp recoil, Nosler 180g Partition, 2718fps, SD=.271, BC=.474, 44.0g IMR4064 (Nosler 5th) 232/272, -20.4”, 1655fpe @ 400
20.9fp recoil, Nosler200g Partition, 2571fps, SD=.301, BC=.481, 48.0g W748 (Nosler 5th) 219/258, -24.3”, 1635fpe @ 400
Comparing bullets of similar (not necessarily identical) SD, the 7mm-08 runs 2-4 foot-pounds less recoil with the lightest bullets and up to 4 pounds when comparing the 175 and 200g bullets. That’s up to 33% less recoil when comparing the 7mm 100g to the .308 125g and 23% less recoil when comparing the 175g and 200g bullets. Other load data would reflect different numbers, of course.
I suspect there are very few people who couldn’t tolerate the differences. On the other hand, the 7mm-08 is more than “enough gun” for many applications and in such cases there is no compelling reason to move to a 308 Win and its increased recoil based on trajectory or downrange energy. Pretty much two peas in a pod. For game larger than deer the .308 gets my vote.
I second the vote for a .257 Roberts, but it is at its best in the hands of a reloader. Factory ammo is pretty limited but but Federal and Nosler have good loads. (Federal only has 1, but it’s a 120g Partition at decent velocity.) Remington and Winchester loads are ho-hum, as are Hornady’s. A 24” .25-06 is another great choice and the ammo selection is excellent.