^^ Good observation, I noticed the same thing. Fired my Winchester last winter quite a bit. Ended up finding a pretty good pile of bullets in the spring after everything melted off. Low and behold, nearly all of 'em still had lube in the grooves.
Sal, there really is just one way to see how they're gonna work... Go shoot 'em! Then hit us back with a range report!
"Why is is called Common Sense when it seems so few actually possess it?"
Guns only have two enemies: Rust and Politicians.