Not sure if anyone is still here. But for what its worth I finally picked my load for my .338 Fed. Basics: Kimber 84M, 22" tube, max COL 2.82", CCI BR2. Win .358 Win brass (found this works better than necking up, and almost 2 gr. H2O more room than Fed brass). I went through all of the powders and most of the bullets listed above (except Nosler). I had best luck with AA2230, AA2460, I3031, and I8208. I settled on the 185 TTSX, as it gave the best down range energy and likely expansion at 1700-1800 fps.

I now load a 185 TTSX with 50.7 gr I8208 to 2775 fps. I also have to trim the case to 1.985" and lightly crimp to keep it all together and short enough for my action. I am seeing standard deviations in the single digits and no temperature variation so far (no extreme cold testing yet). I see about 1.5 MOA, which is as good as I think my gun can do (although recent long range testing 4-500 yds seems to suggest my accuracy might be better than that at longer ranges.

Hope that helps.

"Do you want it "Right", or "Right now"? - always a good question.