Recoil is a very subjective thing with many variables. Here are the recoil numbers from my 338 Win, 340 Wby, and 338 RUM. The 340 and 338 RUM are from my actual loads, the 338 Win data is from the Nosler manual for a higer velocity accurate load. Rifle weight is 9.5 lbs as shot.
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<br>338 Win - 250 grainer at 2650: 33 ft lbs
<br>340 - 250 grainer at 2800: 43 ft lbs
<br>338 RUM - 250 grainer at 2950: 50 ft lbs
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<br>However, the RUM is more comfortable to shoot that the 340 due to the better stock (McMillan vs HS Precision). Also, lighter bullets weights will decrease the recoil.
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<br>My recommendation to a guy just stepping up to his first 338 bore is the 338 Win Mag. It has mild recoil (relatively) and enough thump for anything in NA out to as far as a good shot can hit with it. Ammo and components are readily available. I love my 338 RUM, but it does take some effort to get comfortable with--as does the 340. Also, I bought 500 cases of brass when I had the rifle made so I would never run out. This just isn't an issue with the 338 Win.
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<br>Blaine