joglee from AR15.com posted second part of IAR test done in 2009. This eventually lead to USMC adopting H&K's proposal. The new documents are the last two images in the first post.
http://www.ar15.com/forums/t_1_5/1981914_Breaking--Complete-M27-trial-results--Results-are-shocking-.html
Take a look at the Estimated Barrel Life
From: AR15.com
