Best Slug Gun Scopes for Deer Hunting in 2026

Choose your magnification for the ranges you actually shoot. A smoothbore shotgun firing rifled slugs is realistically a 75-yard gun for deer. A rifled barrel with sabot slugs extends that to around 150 yards for most hunters. A scope in the 2-7x or 1.75-5x range covers both: low power for a deer moving through brush at 30 yards, and enough magnification to place a shot precisely at 150.

The Vortex Crossfire HD 2-7x32 with the illuminated Dead-Hold 2A BDC reticle, at around $189, is the best all-round choice for most slug hunters. It gives 3.9 inches of eye relief, which is important under heavy 12-gauge recoil, along with a 1-inch tube, a 100-yard parallax setting, a length of 11.2 inches and a weight of 15.7 ounces. Its field of view runs from 53.1 feet at 2x to 14.8 feet at 7x at 100 yards, wide enough to pick up a deer quickly at close range. The illuminated center helps against a dark background at dawn and dusk.

The Vortex Diamondback 1.75-5x32 (Dead-Hold BDC), at around $229, is the compact option for thick cover. At 10.2 inches and 13 ounces it is shorter and lighter than most hunting scopes, keeping a slug gun quick to shoulder. It has 3.5 inches of eye relief, a 1-inch tube, 1/4 MOA clicks, a 100-yard parallax setting and a field of view of 68.3 feet at 1.75x, which is excellent for fast shots at deer moving through timber.

The Burris Fullfield E1 3-9x40 Ballistic Plex Shotgun (model 200346), at around $170 against a $204 list price, is built specifically for slug guns. Its parallax is set at 50 yards rather than the 100 yards typical of rifle scopes, matching the closer distances slug hunters often shoot. It has 3.1 to 3.4 inches of eye relief, a 1-inch tube, 1/4 MOA clicks, 50 MOA of elevation and windage travel, a length of 12.2 inches and a weight of 13 ounces. Its Ballistic Plex reticle provides holdover points for slug trajectories, but its shorter eye relief means you need a consistent, correct mount position under heavy recoil.

Eye relief is the single most important spec on a slug gun. A 12-gauge slug recoils much harder than most deer rifles, and a scope with short eye relief can strike your brow if your head creeps forward on the stock. Look for at least 3.5 inches, mount the scope so you get a full picture with your head in a natural position, and do not set it any further back than necessary.

Know how you will mount it. Many pump-action slug guns, such as the Remington 870 and Mossberg 500, are available with rifled barrels that carry a cantilever scope mount attached to the barrel itself. Because the mount stays with the barrel, the scope holds zero even if you remove the barrel for cleaning. Bolt-action slug guns and many semi-autos have drilled and tapped receivers that accept standard bases and rings. Use quality rings and tighten them to the manufacturer's recommended torque, because slug recoil will find any weakness in a mount.

Zero with the exact slug you will hunt with. Different brands and weights of slugs shoot to very different points of impact from the same barrel, and a scope zeroed with one slug can be several inches off with another. Zero at 50 yards first, then confirm at 100, and record your drop at 125 and 150 yards if your barrel and slug are capable of those distances. Pick one slug that groups well in your gun and stick with it.