This is the place:
http://www.winchester.com/Product-Service/Pages/Contact-Us.aspxI don't know what they'll do for you, but others have reported that they will send out a truck for defective primers, replace them, and reimburse you for repairs to your rifle. I requested information about bad lot numbers and got back a form letter. Perhaps a complaint about actual damage will do better.
There's another thread here about this with a list of lot numbers known to have issues, plus some added single lot numbers. I spent an hour or so surfing around and came up with a whole bunch more from various forums, more than I have time to type in. Gven that I've got maybe $50 worth of WLRs, none of which are from the reportedly bad lots, it's easiest to just bail on them. I'll try to sell or give them away, with full disclosure, and move on.
