Mine that is tight is a Genesis and his is an Omega. Both of them are known for being tight bores. Don't get me wrong, I can still use them, they are just tighter than I prefer. On a clean barrel orif I swab good between shots then I'm fine.But in a huntin' scenario it's not always possible to swab between shots. His Omega, it doesn't matter if it's clean or not, they just don't want to go down hardly at all.