It happens sometimes. It is a result of something in the quality control arena slipping. I pretty much quit buying Remington brand handgun ammo way back because I had this happen in several different chamberings, .44 Special, .41 Mag lead bullet 'mid-range, .45 Colt. None of these were very hot loadings, and for factory ammo to do this, someone at R-P had been asleep at the wheel when the brass cases were manufactured.

I haven't seen Federal do this before. My department buys Federal American Eagle for training, practice and some qualification, and we shoot a lot of it in 9mm, .40, .45 and .223/5.56, and it is generally very satisfactory stuff.

Yep, call Federal with the lot number.