Re: 338LM reloading dies
+1 for the Forster BR seater dies. When we got ahold of some early prototypes of the 110BA rifles the dies we got along with the guns were sub-par to say the least (neither Redding nor Forster), and I wasn't wild about paying what Redding charges for their 'non main stream' caliber dies, and no one had the Forster Ultra BR seaters available, so I got a regular BR seater. Basically the same thing as the Ultra but without the micrometer top. Slightly less convenient during load development, but afterwards... no big deal. And that die was less than half the $$$ of a Redding Competition die, of which I have used enough to say that there wasn't any noticeable difference in performance.
YMMV,
Monte