I don't think I'm going to go buy out all the boxes of that lot number this year.. I bought two boxes (10 rounds total), used 5 of them, and have 5 left for hunting.. (Only need one shot per kill so I have plenty).
My reasoning is this..
I saw a video on youtube here:
http://www.youtube.com/watch?v=Lz5VUlQri4Q concerning the winchester partition gold slugs not expanding like they're supposed to.
I'm going to use them this year but if I don't see big honkin holes in the animal, I'm going to switch and try Hornady SST slugs with the poly tip.
We'll see how it goes.. won't know for sure until I actually shoot a deer with it. Perhaps that gel in the youtube vid is too soft or something.