Can I use aftermarket sights on my .357 Magnum lever action rifle?

Choosing the Right Sights

When selecting aftermarket sights for your .357 Magnum lever action rifle, consider the height and alignment of the existing rear sight. A good rule of thumb is to choose sights with a height of around 0.25 inches or less above the existing sight to maintain proper eye alignment. For example, the Henry Repeating Arms folding rear sight is a popular aftermarket option that offers a height of 0.20 inches.

Mounting and Alignment

Before installing the aftermarket sights, ensure the rifle’s top rail or dovetail is clean and free of debris. For rifles with a dovetail, apply a small amount of Loctite or threadlocker to prevent the sight from shifting over time. For top rail-mounted sights, use a level to ensure the sight is properly aligned with the rifle’s barrel. In general, it’s recommended to install the sight on a cold, dry day to prevent any potential issues with the adhesive or Loctite.

Sighting In Your Rifle

After installing the aftermarket sights, take your rifle to a shooting range or a safe area for sighting in. Start with a low power scope setting (around 2-3x) to get a rough estimate of the rifle’s point of impact. Gradually increase the power setting to achieve a more precise aim. Remember to keep the rifle at a consistent temperature and use the same ammunition during the sighting-in process to ensure accurate results.