Indeed I can appreciate that the best test is personal experience, so I will try the MatchKing (on game animals), and I apologize for any offense taken at my comments. (I've shot thousands of these pills at paper targets, so I've got good dope on them for certain...)
It's a bit troubling to think that Sierra is giving out mixed messages, as some of us trust in the advice from these "respected" sources.
Not wishing to reinvent the wheel, I trust in the truth of certain statements, like "don't fire your rifle after you've stuck the muzzle in the mud", rather than trying it out to see what happens.
But this MatchKing thing appears to warrant personal experience, and I bow to your firsthand knowledge gents.
And maybe it's time to try the Hornady AMAX too, because it's a fine long range bullet (at least to 1,000y in my .308).