I did not find the magazine but the article is in
http://www.rifleshootermag.com/featured_rifles/extremes_010506/#cont
I cant findthe partwhere I got that it has precision problems with heavier bullets so either Im simply wrong or found that from another source. Heres a quote from the article:
"It fired 100, 155 and 168 grainers with equal aplomb. The 1:11-inch twist favors the lighter bullets and loves the Hornady TAP with the 110-grain V-Max. Even out of the 16.25-inch, six-groove barrel, it zips along at almost 3,000 fps. Springfield actually recommends Hornady's TAP with the 110-grain V-Max as fodder-of-choice."
Ill keep looking for the magazine.