I have shot the 210 grn. Nosler P. before but still contend that the .338 mag needs heavier bullets to reap all the benefits this caliber can dish out on tough game like elk and bear etc.
I have really gone to just 2 weights in bullets lately and that is the .225 grain bullet and the 275 grain Swift A Frame. It really penetrates deep and whopps critters real hard.
I'd contend the 338 requires heavier bullets for those of us that love it need to justify its use over a 300; problem is that it takes a 250/338 to equal a 200/308. The only real number that wins is the .030, which varies when bullets open up and fold down. Maybe that is a number that matters. I frankly don't know.
I have no experience on really large game, but certain 200, 225 and 230 grain bullets perform so much like the 250's on smaller stuff I just don't buy the rationale. I LIKE it, but its not something I'd bet on.
Now the 300gr. SMK has some real merit