Here is my letter and response from Wolf for the M85 stamped boxes.
My letter to Wolf:
Hi,
I recently purchased a bulk of .223 55 grain FMJ. When attempting to use the ammunition in my AR-15, it would short stroke every single round. I have 470 rounds remaining of the 500 round case. Every other brand of ammunition has worked without any trouble.
I originally had purchased the ammunition from www.ammoman.com on 5/29/2008.
Your website says you will purchase the ammunition back if I am unsatisfied with the product and pay for shipping also. Is this true?
Thanks,
xxxxxxx
Their response:
Dear xxxxxxxx,
Yes this is absolutely true...and we apologize for your unfortunate incident, and any inconvenience this may have caused you.
We have found lately that some of the Polyformance Black box ammunition does not work well in the AR-15's, but we are working at correcting this problem in the next month, so it is temporary. The Polyformance Black box will again work with the AR-15's by summer. In the mean time our Military Classic ammunition seems to work great! It's a hotter round and seems to work flawlessly in the AR-15's. I would suggest purchasing this for the next few months, after that both lines should work fine. If you give me your name, mailing address, amount of remaining ammunition you intend to return, where you purchased the ammunition from and the lot number, (stamped on the inside of the individual boxes), I can send you a UPS ARS tag in the mail. It will allow you to return the ammunition to us at no cost to you. We would like to test the ammunition and find out why you are having this problem. As soon as we receive the ammunition, we will issue you a refund or exchange, which ever you prefer. However, if you would prefer a refund, please include a copy of the invoice inside the case to be returned.
Your experience with WOLF Ammo is definitely not the norm, and we would like to prove that to you.
Sincerely,
WOLF Ammunition
My solution was to send back the defective ammunition to Wolf at their expense. They are to send me 2 boxes of their "fixed" ammunition for me to test, and refund the remaining ammunition.