Mossberg Model 800B .243 Win. Bolt-Action Rifle | 22-Inch Barrel, Walnut Monte Carlo Stock, Weaver Bases
The Mossberg Model 800B is one of the company’s first center-fire rifles, combining a six-lug, 60° bolt lift inspired by Weatherby with a polished blue finish and a crisp single-stage trigger. Chambered in the flat-shooting .243 Win., this full-size bolt gun offers a 4-round internal magazine with a hinged floorplate, factory iron sights, and installed Weaver scope bases—making it ready for either glass or irons. A walnut-finished Monte Carlo stock with skip-line checkering rounds out a classic American sporting rifle produced in the late 1960s to early 1970s.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good – Clean, well-maintained, minor wear marks.
Bore Rifling: Fair Rifling – Worn rifling, slight loss of definition.
Specific Condition Notes: The stock and metal surfaces display scattered scratches and blemishes consistent with field use. Light rust and pitting are visible in isolated areas. The bore remains shiny, with only minor blemishing to the rifling.
What’s Included
- Leather military-style sling (installed)
- Two-piece Weaver-pattern scope bases (installed)
Introduced in 1966, the Model 800 series marked Mossberg’s entry into center-fire rifles. This 800B variant showcases the line’s signature six-lug bolt head and short 60° throw, giving shooters smooth cycling and solid lockup.
The rifle’s 22-inch barrel and .243 Win. chambering balance velocity with manageable recoil, making it suitable for varmints, deer, and target duty alike. A ramped brass bead front sight pairs with a folding step-elevator rear, while the installed Weaver bases allow quick optic mounting without additional gunsmithing.
The walnut-finished hardwood stock features a Monte Carlo comb, right-hand cheek piece, white-line spacer, and impressed skip-line checkering for a period-correct look and steady grip. Length of pull measures 13.5 inches.
Additional touches include an engine-turned bolt body, a tang-mounted two-position safety that is easy to reach with the shooting thumb, and a polished blue steel finish across the receiver and barrel. Fewer than 150,000 Model 800 rifles were produced, giving this example added appeal for Mossberg enthusiasts.