Just a heads up that one of the officers at my agency experienced a squib load with department issued Federal 180 grain HST this weekend (S&W M&P40 full size). Apparently the bullet lodged about half way through the barrel. Luckily, the officer did not attempt to chamber another live round behind the obstructed bullet. The lot number on the ammunition box is 2 48R606. Waiting to hear back from Federal as to what they recommend but as soon as I know I will update this post.