Before TSS came along not many people in their right mind tried to shoot turkeys with a Lead #7....
Fact is a Lead #7 pellet weighs more than a TSS #9 pellet.
You take two projectiles one heavier and one lighter you send them out the muzzle at the same velocity the heavier pellet will retain more energy and velocity than the lighter pellet.
#7 lead beats TSs #9
Don't take a Rocket scientist to see that.
