Mossberg 590A1 Mariner Takes On Steel Animal Targets With Slugs
November 8, 2026
In a video from hickok45, a Mossberg 590A1 Mariner loaded with slugs is put through a "big game hunt" on steel targets shaped like a buffalo, a ram, a turkey and a hog, showing how the pump shotgun handles as a slug gun on the channel's steel range.
Key points
- The gun: The 590A1 Mariner in the video holds six rounds plus one, and hickok45 notes that Mossberg also offers a 21-inch barrel version with a larger magazine.
- Slug hits: Rifled slugs visibly rock and knock the steel animal targets, and hickok45 comments repeatedly on how hard the hits land.
- Reloading: He pauses several times to top off the magazine tube and chamber a round, checking the safety and his round count each time.
- Defensive use: hickok45 closes by calling the 590A1 Mariner a strong option for defense, apart from its showing on the steel "game" course.
Quick take
hickok45 treats the session as an informal, playful function check rather than a detailed review, using the big-game theme to show the Mariner feeding slugs and knocking down the steel animal targets.
Watch the full video: hickok45