i checked out the platinums and it looks like 338 grain is the biggest that cabelas offers. Seeing how this supposedly has a harder coating, i'd pick up a couple packs to try out in your rifle. They are a little more expensive But when it comes down to using a bullet that offers you the best groups, sometimes you'll have to spend that little extra. If you decide against the platinums, Go with the 348 grain powerbelt. I'll be having my dad resight in his sidelock with a 348 grain powerbelt for this years elk hunt if he draws a tag. Another one of my choices is the 350 grain TC maxi hunters, my rifle loves them. Also a 385 grain great plains bullet is guaranteed to take that elk down. But the downfall on that bullet is the amount of drop. Over 24" drop from being sighted in dead on at 100 yards and then shooting 200 yards. Massive drop but a great bullet IMO. Harder to load, need to carry a short starter to load 'em.