I bought a couple 5 packs of Heavyweight #7's for my 20 ga. last week and thought I'd check out the same in 3" 12 ga. I have a habit of opening and checking out the ammo inside. Both 5 packs (all they had) of 12 ga had the ends bulging to the point of opening up. The boxes were a bit worn, so no doubt at least last year's product. I also read some comments on Cabelas site that the Longbeards had bulged also, to the point that they would not cycle thru the European semi autos. I've had the Hevi 13's leak the buffer,but they never bulged. Anyone else notice any of this?