Hey dogballs Federal loads 6 different grs for your 338. I would reccomend the TSXs. This bullet has been very good to me for as long as it has been out. I load the 210TSXs in my 338 RUM and it shoots under .5. Anyway with that said you don't have to go with a heavier bullet if you use a premium bullet like the tsx. Just my opinion but heavier is not always the answer. HAPPY HUNTING.