Browsing about for possible .338 loads, I took notice of the Hornady 200-grain FTX bullet; nice boattail, ought to work nicely.
However, I can find NOTHING official on the subject. A few notes by people saying "I tried it in the .338 Whatever with good results!", but no specifics. This is troubling, as the Hornady bullet sits a bit deeper in the case than other 200-grain bullets, which generally means higher pressures with the same charge, meaning you can't use the same data.
So I contacted Hornady: "I'm looking for information on this, can you help me?" Response: "Nope. Got nothing. Try Hodgdon."
So I e-mailed Hodgdon: "You got anything?" Response: "Don't have anything, or know of any sources."
So far nobody will admit to having any knowledge on this. Any suggestions?
Got some suggestions- good ones- from AM and Arthur in comments. Also got some new information: I wrote to Lyman(which I should've done earlier, considering the manual on the shelf behind me) and asked if they had any data that might've been worked up for the next edition. Response:
We do have data in our 49th Edition Reloading book, but not for that
exact bullet. We used a Speer 200 grain jacketed soft point. You can
use this data for the Hornady Bullet as long as you begin with the start
charge and work up the load. You may also have to tailor the OAL a bit
but you shouldn't have any issues.
So looks like I'm in business to load a few of these to try. My thanks to everyone.