A lot of the comments have mentioned a .338’s recoil, so I’d like to respond to that aspect of a .338. I first started shooting my .338 in 1984, as I bought it for a 1985 spring Bear hunt on Kodiak. I thought the 338 had a pretty stout kick, but no worse than my 300 win mag. But I also liked how it hammered the bear at over 200 yards, across a canyon. As I recall the Bear went about 30 yards or so and died.
Since then, I’ve shot the 338 a lot. Like shot the barrel out and had to rebarrel a lot. I replaced the Winchester factory barrel with a fluted Lilja barrel, as the original version was a bit heavy. At that time I also had a Brown Precision foam filled fiberglass stock installed to replace the wood stock. The first thing I noticed was my rifle was quite a bit lighter. My 338 now weighs 8.2 lbs with a Leupold VX5 in 2-10 topping it. So, heavy enough but not too heavy, actually maybe a touch light compared to most 338’s. When I started shooting it after the modifications I also noticed that it didn’t kick very bad anymore. Less felt recoil than before when it weighed more.
I was talking to Mark Brown of Brown Precision about how the recoil felt less after putting his stock on, even though my gun was now lighter. What he told me was very enlightening. Mark explained that they’d done high speed video analysis of their stocks under recoil. What they found was that their stocks flex under recoil, while a traditional walnut stock is quite stiff under recoil. This flexing has the effect of dampening recoil. Those hundreds of a second of the stock absorbing the recoil soften how it feels to my shoulder.
Fast forward to my son and I shooting before our 2023 hunt in the Selous. We were shooting our 375’s, my son’s a factory standard Winchester safari express, wood stocked, that had to weigh close to 10 pounds. My custom 375 weighs 8.9 lbs with a light contour (I think #4) barrel for a 375 and of course it’s got a fiberglass stock. My son was shooting his gun, then asked if he could shoot mine. After 3 shots with my rifle, he set it down and said “I’m getting a fiberglass stock before the next hunt with this gun.” Now, his 375 wears a McMillan fiberglass stock. Felt recoil is noticeably less now, even though his gun is about 1/2 pound lighter. It’s still too heavy for my taste but he loves it.
Back to the 338 win mag… If you’re open to having a custom built gun (I realize the OP is buying an off the shelf factory gun) that wears a foam filled fiberglass stock that fits you well, the recoil of a 338 is very comfortable. I believe mine has less felt recoil than many 300 magnums I’ve shot. And a 225 grain bullet leaving the barrel around 2,900 fps arrives with a lot of effect on whatever you’re shooting. I’d really like to shoot a Buffalo with mine one of these days. I’m a big fan of 300 magnums but after getting my 338 in its current configuration, I’ve never had a reason to get another 300.