When Winchester came out with compression formed hulls for their shot shells it was revolutionary. They reloaded better. The 20ga hulls last longer reloading. For me Federal and Remington 410 hulls reloaded longer. 28ga hulls never lasted as long for me in any brand. AA12 reloaded well. When I shot Skeet we practiced with 410 because it was cheaper and I shot a lot of it.
