You can go to hornady see what they write on they web site but , the truth on this is better way to find out is to try like i do , and many here do it .
Yes if you go on every web site like hornady , Remington and other they all will tell you the 338 lapua are better than every other caliber , is a marketing trick for sale some ammunition , like they make for 300 win mag the day that come ...... is a miracle ammo , but hornady give information but not the best because i do the test my self on a 1000 yards shooting range and here i have about 20 guys can told you what they see and find . Hornady and Remington , winchester will tell you the .45-70 gov can go many far than 100 and 150 yards , i know they told me that , but i can make 660 yards shot with ........ so they are technician and all they Info are on technical calcule and not on live . the 375 ruger can push a 300 gr at 2800 and 2900 fps , 338 lapua can push same bullet at 2500 to 2600 fps , so 375 ruger are 200 fps more in velocity , and with the 250 gr the 338 lapua have 2800 to 2900 fps , and 375 ruger 3000 to 3100 fps . again the speed are better on the 375 ruger .
why you not find a web site who just tell 375 ruger are better then .338 lapua is just because the most of owner of 375 ruger have it for safari hunt to shoot in 300 yards range and low with large meplat bullet , but that not meen the caliber can shoot at long distance . Is not because a cartridge are commercial made for close range hunting is the only way that can go . I can told you 375 cheytac are better the .338 lapua , but the 375 ruger are enough strong and enough accurate to match or beat the 338 lapua performance .
but again they have shooter fact too , and bullet and powder and rifle , maybe some 338 lapua can do better job than 375 ruger . and on other rifle that is the other side . but again don't listen what people same because many are pro 338 , many are 300 win mag . Him a .45 guy i not try to try to defend this caliber is just tell the facts i try with friends and people on shooting range .
i know many are possible with big game caliber , and i try to find the true potential of this calibers.