Haven't had any isues with Federal, but I don't have it in .270 either.
As far as two different cities on two different dates, that doesn't really matter as the ammo is mass produced and sent all over in batches through distributors. One distributor might handle 40 independent and 30 chain retailers in 6 or 7 states along a regional area.
Could be a bad batch of 15,000 to 30,000 bullets in a single day.
I'd call the place you bought it, but also call Federal's public relations dept.