I recently bought my first shotgun.. I live down the street from a Walmart and was looking at what they had for ammo. They had some reallllly cheap birdshot. Like $9 for a box of 25. It was sold as skeet shooting ammo. It was lead. Made my remington. My question is, will I have any problems shooting really cheap ammo out of my mossberg 590A1? What downsides will I get from buying crappy ammo? As long as its lead am I okay? I'm suchhhh a noob at this, sorry.