What caliber is typically associated with the Remington 870 shotgun?

The Remington 870 shotgun is most commonly associated with the 12 gauge caliber, which is a standard size for shotguns and widely used in various shooting disciplines, including hunting and law enforcement.

The 12 gauge is particularly popular due to its versatility and wide availability of ammunition types, including birdshot, buckshot, and slugs, making it suitable for a variety of applications. The firearm's design and construction accommodate the powerful 12 gauge shell effectively, allowing for a balance of recoil and stopping power that is ideal for both novice and experienced shooters.

Other calibers, such as the 20 gauge, are also available for the Remington 870 but they are generally considered to be less powerful and are often chosen for specific purposes like training or for those who prefer a lighter recoil. The 10 gauge, while powerful, is less common and is typically used for specialized hunting scenarios. The 20 mm is a military caliber, vastly different from what is used in standard shotgun platforms, and is not relevant in the context of the Remington 870.