Feast your eyes on the incredibly powerful (and super heavy) Russian Grizzly slug.
TAOFLEDERMAUS cooked up a good experiment in this video. He got some super heavy slugs with a Russian design (that need to be shot with a rifled choke) from an anonymous follower, and took to the range to give them a whirl.
This is easily some of the most damage these oddball slugs have done on any of TAOFLEDERMAUS’ videos. Check out more on his YouTube channel.