The .50, .54, & .58's are all made on the same barrel blanks. So the .50 weighs a ton and they get lighter as the bore size goes up. I had a .50 I bought with some other guns as a package at an estate sale years ago that I sold without even shooting it. Hated how muzzle heavy it was. I helped a guy work up a load who had a .58 as i had a number of .58 molds. It handled pretty nice.