8Jan/139
A 40,000 Round .223 Test, Or, the Last Six Months of My Life
I've been working on this comparison of Wolf, Brown Bear, Tula, and Federal .223 ammunition since July. I think those who read my blog will find it interesting. It should bring forth some real data to a number of discussions relating to AR reliability, wear, and the differences between types of ammunition...

The bushel of AR-15s involved in the test.
There seem to be some errors accessing the site right now, but it should be accessible to all soon.