Rod WMG... Go to
http://winchester.com/contactus/index.html Fill out the form and send it.
This is the ammunition division, but the site does deal with components. If you fail to get a satisfactory response, please repost & I'll e-mail you the phone # of powder chemist at Olin/St. Marks who has been helpful to me in the past. He may not himself be able to help you directly, but I'll bet one of his co-workers can give you an explanation, and information about what is being done to solve the problem.