Just re-posting in case you might use factory ammo at some point:

WARNING

FEDERAL/Champion 40 S&W Packaging Mix
Immediate Action Required
DO NOT USE
ITEM DESCRIPTION PRODUCT NUMBER LOT NUMBER
50-Round Boxes WM5223 A27T3 & A27T4
FEDERAL CARTRIDGE COMPANY • 900 BOB EHLEN DRIVE • ANOKA, MN 55303
LOT NUMBER LOCATION
PRODUCT NUMBER LOCATION
We have identified (2) lots of Federal Champion ammunition with boxes labeled
40 S&W that may contain 9mm ammunition. If you have 40 S&W 50-round box
with Lot Number A27T3 or A27T4, DO NOT USE. Use of 9mm ammunition in
40-caliber firearms may result in firearm damage and/or personal injury.

http://www.federalpremium.com/downlo...SW_Warning.pdf