Loading

Before loading, move the safety button fully rearward (Fig. 2) to the "ON" (SAFE) position.

During loading, never allow fingers or any objects to contact the trigger. Keep the muzzle pointed in a safe direction at all times.

Depress the action lock lever (Fig. 3) and open the action by pulling the forearm completely rearward.

Do not load firearm until ready to use! Unload firearm when shooting has been completed! The safety button should always be fully rearward in the "ON" (SAFE) position whether or not the firearm is loaded.

Inspect the chamber and bore of the barrel for any obstruction, excessive oil or grease. (The chamber is the rear portion of the barrel which contains the cartridge (Fig. 4).) Obstructions of any kind can cause damage to the firearm and may result in serious personal injury to the shooter and/or others nearby.

Check to be certain that the ammunition selected is the same type of cartridge as designated on the left side of the barrel.

835® Models are designated to fire 12 gauge 2-3/4", 3", or 3-1/2" factory loaded ammunition. Do not fire slugs of any type (single projectile ammunition) through the overbored 835 Accu-Mag barrel. This barrel is designated to shoot lead or steel pellet shot loads only. Use only 835 barrels designated specifically for slug shooting.

535™ Models are designed for factory loaded 2-3/4", 3", and 3-1/2" shells and rifled slugs.

590® Models handle 12 ga. 2-3/4" or 3" magnum shells. 500® and 505™ Models are designed for 2-3/4" (2-1/2" .410 bore) and 3" magnum shells within gauge.

Fully rifled barrels deliver best accuracy with sabot style slugs. "Rifled" slugs and shotshells are not recommended for use in rifled barrels.

If you wish to load the firearm with the maximum number of shells, or fire single shots, load the first shell through the ejection port located on the right side of the receiver (Fig. 5). The shell can be inserted directly into the chamber or placed on top of the elevator. Close the action by moving the forearm completely forward. Be sure to leave the safety "ON" (fully rearward) until you are ready to shoot.

Shotshell Elevator Mechanism

The firearm is now loaded and will fire if the safety is moved to the "OFF" (FIRE) position and the trigger is pulled. Keep the muzzle pointed in a safe direction at all times.

LOADING MAGAZINE

Load the magazine tube by turning the shotgun so that the trigger guard is facing up and the action is closed. Push the front end of the shell into the magazine tube until the rim of the shell snaps past the cartridge stop (Fig. 6 & 9). Never attempt to exceed the magazine capacity.

Mossberg 500 Shell Stop Picture

Discharging firearms in poorly ventilated areas, cleaning firearms, or handling ammunition may result in exposure to lead and/or substances known to cause birth defects, reproductive harm, and/or other serious physical injury. Have adequate ventilation at all times. Wash hands thoroughly after exposure.

FIRING

With the firearm pointed in a safe direction and held in the proper firing position, move the safety button fully forward to its ' 'OFF" (FIRE) position. Pulling the trigger through its full travel to the rear will cause the firearm to fire. Ensure muzzle is pointed in a safe direction before placing finger on trigger.

Should the shotshell fail to fire, keep the firearm pointed in a safe direction and move the safety button fully rearward to the "ON" (SAFE) position. Wait a few moments and then remove the misfired shell and keep separate from other ammunition. Do not attempt to refire a misfired round.

If at any time during firing, the sound of any shell is noticeably louder or softer than the previous shells fired, STOP! Do not load or fire additional shells until you have put safety in the "ON" (SAFE) position and safely unloaded your firearm. Inspect the firearm for possible damage or obstructions in the chamber or bore. (The bore is the inside surface of the barrel.) Firing the shotgun with a bore obstruction can cause damage to the firearm and may result in serious personal injury to the shooter and/or others nearby.

CYCLING THE ACTION

To eject a shotshell case, pull the forearm completely rearward. The spent case or unfired shotshell will eject out of the receiver through the ejection port.

Be sure that all observers are clear of the path of ejection. Empty cases are thrown out with significant force and could cause injury.

To chamber a live shotshell from the magazine, push the forearm fully forward.

Remember: when the magazine tube is loaded and the action is cycled, a live shotshell will be chambered! Always keep the safety in the "ON" (SAFE) position until you have actually decided to fire.

UNLOADING

Move the safety button fully rearward to the ' 'ON" (SAFE) position and keep the muzzle pointed in a safe direction while unloading the firearm.

Depress the action lock lever (Fig. 3) and pull the forearm rearward, slowly, until the live shotshell is completely withdrawn and visible in the ejection port. Remove shotshell by hand.

Continue pulling the forearm rearward to release the next shotshell onto the elevator.

Turn the shotgun so that the ejection port faces downward to allow the released shotshell to drop out through the ejection port.

Push the forearm completely forward, closing the bolt without a shell being chambered.

Turn the shotgun over so that the trigger guard is positioned upward and the shotgun remains pointed in a safe direction.

Insert your right thumb into the opening in the bottom of the receiver and depress the cartridge stop on the right side to release shotshells one at a time (Fig. 9). Repeat until all shotshells are removed from the magazine tube.

Depress the action lock lever and pull the forearm completely rearward. Visually and physically inspect chamber, elevator and magazine tube to be certain the shotgun is completely unloaded.

Leave the action in the open, rearward position and the safety button fully rearward in the "ON" (SAFE) position.

DISASSEMBLY

Move the safety button fully rearward to the "ON" (SAFE) position and visually and physically check the chamber, elevator, and magazine tube to be certain the shotgun is unloaded before disassembling the firearm. Wear eye protection during disassembly and cleaning.

Depress the action lock lever (Fig. 3) and open the action by sliding the forearm fully rearward.

Move the forearm slowly forward from the fully rearward position until the front of the bolt is in the middle of the ejection port (Fig. 7).

Move the forearm slowly forward from the fully rearward position until the front of the bolt is in the middle of the ejection port (Fig. 7).

Mossberg 535 Magazine Spring

CAUTION: The 590® and 835® Model magazine spring retainers and springs are under significant spring pressure. Use caution should removal be necessary to prevent injury to yourself or others around you.

Unscrew the magazine cap by turning it counterclockwise.

Remove the barrel from the receiver with a gentle back-and-forth rotational movement while pulling the barrel out of the receiver assembly.

Loosen the takedown screw by turning it counterclockwise until the screw threads are completely disengaged from the end of the magazine tube (Fig. 7).

Remove the barrel from the receiver with a gentle back-and-forth rotational movement while pulling the barrel out of the receiver assembly.

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  • Antje
    How to load and fire a mossberg 500?
    8 years ago

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