Slugs are all over the place too by brand. I wanna say it was Remington something, they had some kind of goofy green plastic head on em. Some were dead on and some were way off. I shot two boxes so it wasn't me.
Don't even get me started with muzzleloader sabots, Powerbelts are accurate, but half of them blow apart on impact. I shot a big doe a few years ago at 42 yds. Perfect shot. She went over 350 yds. That bullet fragmented in impact and blew downwards through her stomach. It was -0 outside so I salvaged all the meat but I didn't find her til the next morning.