The 30-338 and the .308 Morma are virtually the same round. So, you can often use the same load data. I used the 30-338 for several years and liked it a lot. All 30 caliber magnums are excellent long range performers with the right bullets. I no longer have a 30-338 mostly because I don't want to put up with the recoil not because it's not a fine cartridge.